Home / 142,115.90-213,248.57-57,938.27

Finding the Fourth Proportional to 142,115.90, 213,248.57 and 57,938.27

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Solution

The fourth proportional to 142,115.90, 213,248.57 and 57,938.27 is: 86,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,115.90 : 213,248.57 = 57,938.27 : x
  2. Step 2: Convert to fraction form
    142,115.90/213,248.57 = 57,938.27/x
  3. Step 3: Cross multiply
    142,115.90x = 213,248.57 × 57,938.27
  4. Step 4: Simplify right side
    142,115.90x = 12,355,251,869.84
  5. Step 5: Solve for x
    x = 12,355,251,869.84/142,115.90
  6. Step 6: Final answer
    x = 86,937.86

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1.5x scale

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.