Home / 100,780.10-151,192.62-30,664.88

Finding the Fourth Proportional to 100,780.10, 151,192.62 and 30,664.88

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Solution

The fourth proportional to 100,780.10, 151,192.62 and 30,664.88 is: 46,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,780.10 : 151,192.62 = 30,664.88 : x
  2. Step 2: Convert to fraction form
    100,780.10/151,192.62 = 30,664.88/x
  3. Step 3: Cross multiply
    100,780.10x = 151,192.62 × 30,664.88
  4. Step 4: Simplify right side
    100,780.10x = 4,636,302,639.90
  5. Step 5: Solve for x
    x = 4,636,302,639.90/100,780.10
  6. Step 6: Final answer
    x = 46,004.15

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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.