Home / 126,005.01-173,886.78-72,287.70

Finding the Fourth Proportional to 126,005.01, 173,886.78 and 72,287.70

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Solution

The fourth proportional to 126,005.01, 173,886.78 and 72,287.70 is: 99,756.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,005.01 : 173,886.78 = 72,287.70 : x
  2. Step 2: Convert to fraction form
    126,005.01/173,886.78 = 72,287.70/x
  3. Step 3: Cross multiply
    126,005.01x = 173,886.78 × 72,287.70
  4. Step 4: Simplify right side
    126,005.01x = 12,569,875,386.61
  5. Step 5: Solve for x
    x = 12,569,875,386.61/126,005.01
  6. Step 6: Final answer
    x = 99,756.95

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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.