Home / 129,264.76-178,327.07-75,525.62

Finding the Fourth Proportional to 129,264.76, 178,327.07 and 75,525.62

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Solution

The fourth proportional to 129,264.76, 178,327.07 and 75,525.62 is: 104,191.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,264.76 : 178,327.07 = 75,525.62 : x
  2. Step 2: Convert to fraction form
    129,264.76/178,327.07 = 75,525.62/x
  3. Step 3: Cross multiply
    129,264.76x = 178,327.07 × 75,525.62
  4. Step 4: Simplify right side
    129,264.76x = 13,468,261,538.49
  5. Step 5: Solve for x
    x = 13,468,261,538.49/129,264.76
  6. Step 6: Final answer
    x = 104,191.28

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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.