Home / 126,019.24-173,905.19-72,312.70

Finding the Fourth Proportional to 126,019.24, 173,905.19 and 72,312.70

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Solution

The fourth proportional to 126,019.24, 173,905.19 and 72,312.70 is: 99,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,019.24 : 173,905.19 = 72,312.70 : x
  2. Step 2: Convert to fraction form
    126,019.24/173,905.19 = 72,312.70/x
  3. Step 3: Cross multiply
    126,019.24x = 173,905.19 × 72,312.70
  4. Step 4: Simplify right side
    126,019.24x = 12,575,553,832.91
  5. Step 5: Solve for x
    x = 12,575,553,832.91/126,019.24
  6. Step 6: Final answer
    x = 99,790.74

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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.