Home / 102,355.12-153,532.67-39,981.88

Finding the Fourth Proportional to 102,355.12, 153,532.67 and 39,981.88

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Solution

The fourth proportional to 102,355.12, 153,532.67 and 39,981.88 is: 59,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,355.12 : 153,532.67 = 39,981.88 : x
  2. Step 2: Convert to fraction form
    102,355.12/153,532.67 = 39,981.88/x
  3. Step 3: Cross multiply
    102,355.12x = 153,532.67 × 39,981.88
  4. Step 4: Simplify right side
    102,355.12x = 6,138,524,788.02
  5. Step 5: Solve for x
    x = 6,138,524,788.02/102,355.12
  6. Step 6: Final answer
    x = 59,972.82

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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.