Home / 130,007.30-194,622.15-77,389.70

Finding the Fourth Proportional to 130,007.30, 194,622.15 and 77,389.70

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Solution

The fourth proportional to 130,007.30, 194,622.15 and 77,389.70 is: 115,853.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,007.30 : 194,622.15 = 77,389.70 : x
  2. Step 2: Convert to fraction form
    130,007.30/194,622.15 = 77,389.70/x
  3. Step 3: Cross multiply
    130,007.30x = 194,622.15 × 77,389.70
  4. Step 4: Simplify right side
    130,007.30x = 15,061,749,801.86
  5. Step 5: Solve for x
    x = 15,061,749,801.86/130,007.30
  6. Step 6: Final answer
    x = 115,853.11

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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.