Home / 126,842.47-175,045.44-72,393.55

Finding the Fourth Proportional to 126,842.47, 175,045.44 and 72,393.55

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Solution

The fourth proportional to 126,842.47, 175,045.44 and 72,393.55 is: 99,904.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,842.47 : 175,045.44 = 72,393.55 : x
  2. Step 2: Convert to fraction form
    126,842.47/175,045.44 = 72,393.55/x
  3. Step 3: Cross multiply
    126,842.47x = 175,045.44 × 72,393.55
  4. Step 4: Simplify right side
    126,842.47x = 12,672,160,812.91
  5. Step 5: Solve for x
    x = 12,672,160,812.91/126,842.47
  6. Step 6: Final answer
    x = 99,904.71

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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.