Home / 127,124.28-175,436.20-69,765.36

Finding the Fourth Proportional to 127,124.28, 175,436.20 and 69,765.36

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Solution

The fourth proportional to 127,124.28, 175,436.20 and 69,765.36 is: 96,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,124.28 : 175,436.20 = 69,765.36 : x
  2. Step 2: Convert to fraction form
    127,124.28/175,436.20 = 69,765.36/x
  3. Step 3: Cross multiply
    127,124.28x = 175,436.20 × 69,765.36
  4. Step 4: Simplify right side
    127,124.28x = 12,239,369,650.03
  5. Step 5: Solve for x
    x = 12,239,369,650.03/127,124.28
  6. Step 6: Final answer
    x = 96,278.77

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1.5x scale

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.