Home / 126,884.38-175,078.20-72,411.70

Finding the Fourth Proportional to 126,884.38, 175,078.20 and 72,411.70

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Solution

The fourth proportional to 126,884.38, 175,078.20 and 72,411.70 is: 99,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,884.38 : 175,078.20 = 72,411.70 : x
  2. Step 2: Convert to fraction form
    126,884.38/175,078.20 = 72,411.70/x
  3. Step 3: Cross multiply
    126,884.38x = 175,078.20 × 72,411.70
  4. Step 4: Simplify right side
    126,884.38x = 12,677,710,094.94
  5. Step 5: Solve for x
    x = 12,677,710,094.94/126,884.38
  6. Step 6: Final answer
    x = 99,915.45

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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.