Home / 122,528.92-169,126.58-71,555.40

Finding the Fourth Proportional to 122,528.92, 169,126.58 and 71,555.40

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Solution

The fourth proportional to 122,528.92, 169,126.58 and 71,555.40 is: 98,767.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,528.92 : 169,126.58 = 71,555.40 : x
  2. Step 2: Convert to fraction form
    122,528.92/169,126.58 = 71,555.40/x
  3. Step 3: Cross multiply
    122,528.92x = 169,126.58 × 71,555.40
  4. Step 4: Simplify right side
    122,528.92x = 12,101,920,082.53
  5. Step 5: Solve for x
    x = 12,101,920,082.53/122,528.92
  6. Step 6: Final answer
    x = 98,767.87

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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.