Home / 157,472.76-236,084.40-78,546.36

Finding the Fourth Proportional to 157,472.76, 236,084.40 and 78,546.36

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Solution

The fourth proportional to 157,472.76, 236,084.40 and 78,546.36 is: 117,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,472.76 : 236,084.40 = 78,546.36 : x
  2. Step 2: Convert to fraction form
    157,472.76/236,084.40 = 78,546.36/x
  3. Step 3: Cross multiply
    157,472.76x = 236,084.40 × 78,546.36
  4. Step 4: Simplify right side
    157,472.76x = 18,543,570,272.78
  5. Step 5: Solve for x
    x = 18,543,570,272.78/157,472.76
  6. Step 6: Final answer
    x = 117,757.32

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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.