Home / 126,142.56-174,080.88-72,437.13

Finding the Fourth Proportional to 126,142.56, 174,080.88 and 72,437.13

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Solution

The fourth proportional to 126,142.56, 174,080.88 and 72,437.13 is: 99,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,142.56 : 174,080.88 = 72,437.13 : x
  2. Step 2: Convert to fraction form
    126,142.56/174,080.88 = 72,437.13/x
  3. Step 3: Cross multiply
    126,142.56x = 174,080.88 × 72,437.13
  4. Step 4: Simplify right side
    126,142.56x = 12,609,919,335.07
  5. Step 5: Solve for x
    x = 12,609,919,335.07/126,142.56
  6. Step 6: Final answer
    x = 99,965.62

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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.