Home / 106,502.30-159,778.02-31,620.76

Finding the Fourth Proportional to 106,502.30, 159,778.02 and 31,620.76

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Solution

The fourth proportional to 106,502.30, 159,778.02 and 31,620.76 is: 47,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,502.30 : 159,778.02 = 31,620.76 : x
  2. Step 2: Convert to fraction form
    106,502.30/159,778.02 = 31,620.76/x
  3. Step 3: Cross multiply
    106,502.30x = 159,778.02 × 31,620.76
  4. Step 4: Simplify right side
    106,502.30x = 5,052,302,423.70
  5. Step 5: Solve for x
    x = 5,052,302,423.70/106,502.30
  6. Step 6: Final answer
    x = 47,438.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.