Home / 127,438.08-175,886.28-73,755.78

Finding the Fourth Proportional to 127,438.08, 175,886.28 and 73,755.78

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Solution

The fourth proportional to 127,438.08, 175,886.28 and 73,755.78 is: 101,795.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,438.08 : 175,886.28 = 73,755.78 : x
  2. Step 2: Convert to fraction form
    127,438.08/175,886.28 = 73,755.78/x
  3. Step 3: Cross multiply
    127,438.08x = 175,886.28 × 73,755.78
  4. Step 4: Simplify right side
    127,438.08x = 12,972,629,772.70
  5. Step 5: Solve for x
    x = 12,972,629,772.70/127,438.08
  6. Step 6: Final answer
    x = 101,795.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.