Home / 138,464.92-207,699.05-38,619.04

Finding the Fourth Proportional to 138,464.92, 207,699.05 and 38,619.04

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Solution

The fourth proportional to 138,464.92, 207,699.05 and 38,619.04 is: 57,929.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,464.92 : 207,699.05 = 38,619.04 : x
  2. Step 2: Convert to fraction form
    138,464.92/207,699.05 = 38,619.04/x
  3. Step 3: Cross multiply
    138,464.92x = 207,699.05 × 38,619.04
  4. Step 4: Simplify right side
    138,464.92x = 8,021,136,688.32
  5. Step 5: Solve for x
    x = 8,021,136,688.32/138,464.92
  6. Step 6: Final answer
    x = 57,929.02

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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.