Home / 105,720,007.90-158,580,011.85-105,720,007.90

Finding the Fourth Proportional to 105,720,007.90, 158,580,011.85 and 105,720,007.90

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Solution

The fourth proportional to 105,720,007.90, 158,580,011.85 and 105,720,007.90 is: 158,580,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,720,007.90 : 158,580,011.85 = 105,720,007.90 : x
  2. Step 2: Convert to fraction form
    105,720,007.90/158,580,011.85 = 105,720,007.90/x
  3. Step 3: Cross multiply
    105,720,007.90x = 158,580,011.85 × 105,720,007.90
  4. Step 4: Simplify right side
    105,720,007.90x = 16,765,080,105,564,094
  5. Step 5: Solve for x
    x = 16,765,080,105,564,094/105,720,007.90
  6. Step 6: Final answer
    x = 158,580,011.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.