Home / 157,685.20-236,565.60-52,505.12

Finding the Fourth Proportional to 157,685.20, 236,565.60 and 52,505.12

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Solution

The fourth proportional to 157,685.20, 236,565.60 and 52,505.12 is: 78,770.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,685.20 : 236,565.60 = 52,505.12 : x
  2. Step 2: Convert to fraction form
    157,685.20/236,565.60 = 52,505.12/x
  3. Step 3: Cross multiply
    157,685.20x = 236,565.60 × 52,505.12
  4. Step 4: Simplify right side
    157,685.20x = 12,420,905,215.87
  5. Step 5: Solve for x
    x = 12,420,905,215.87/157,685.20
  6. Step 6: Final answer
    x = 78,770.27

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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.