Home / 113,229.92-156,192.68-70,189.76

Finding the Fourth Proportional to 113,229.92, 156,192.68 and 70,189.76

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Solution

The fourth proportional to 113,229.92, 156,192.68 and 70,189.76 is: 96,821.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,229.92 : 156,192.68 = 70,189.76 : x
  2. Step 2: Convert to fraction form
    113,229.92/156,192.68 = 70,189.76/x
  3. Step 3: Cross multiply
    113,229.92x = 156,192.68 × 70,189.76
  4. Step 4: Simplify right side
    113,229.92x = 10,963,126,722.96
  5. Step 5: Solve for x
    x = 10,963,126,722.96/113,229.92
  6. Step 6: Final answer
    x = 96,821.82

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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.