Home / 126,616.30-174,711.06-72,890.92

Finding the Fourth Proportional to 126,616.30, 174,711.06 and 72,890.92

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Solution

The fourth proportional to 126,616.30, 174,711.06 and 72,890.92 is: 100,578.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,616.30 : 174,711.06 = 72,890.92 : x
  2. Step 2: Convert to fraction form
    126,616.30/174,711.06 = 72,890.92/x
  3. Step 3: Cross multiply
    126,616.30x = 174,711.06 × 72,890.92
  4. Step 4: Simplify right side
    126,616.30x = 12,734,849,897.58
  5. Step 5: Solve for x
    x = 12,734,849,897.58/126,616.30
  6. Step 6: Final answer
    x = 100,578.28

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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.