Home / 138,962.96-208,456.74-39,124.02

Finding the Fourth Proportional to 138,962.96, 208,456.74 and 39,124.02

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Solution

The fourth proportional to 138,962.96, 208,456.74 and 39,124.02 is: 58,689.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,962.96 : 208,456.74 = 39,124.02 : x
  2. Step 2: Convert to fraction form
    138,962.96/208,456.74 = 39,124.02/x
  3. Step 3: Cross multiply
    138,962.96x = 208,456.74 × 39,124.02
  4. Step 4: Simplify right side
    138,962.96x = 8,155,665,664.89
  5. Step 5: Solve for x
    x = 8,155,665,664.89/138,962.96
  6. Step 6: Final answer
    x = 58,689.49

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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.