Home / 106,861.92-147,360.24-71,057.76

Finding the Fourth Proportional to 106,861.92, 147,360.24 and 71,057.76

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Solution

The fourth proportional to 106,861.92, 147,360.24 and 71,057.76 is: 97,987.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,861.92 : 147,360.24 = 71,057.76 : x
  2. Step 2: Convert to fraction form
    106,861.92/147,360.24 = 71,057.76/x
  3. Step 3: Cross multiply
    106,861.92x = 147,360.24 × 71,057.76
  4. Step 4: Simplify right side
    106,861.92x = 10,471,088,567.46
  5. Step 5: Solve for x
    x = 10,471,088,567.46/106,861.92
  6. Step 6: Final answer
    x = 97,987.09

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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.