Home / 111,925.68-154,472.18-64,169.70

Finding the Fourth Proportional to 111,925.68, 154,472.18 and 64,169.70

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Solution

The fourth proportional to 111,925.68, 154,472.18 and 64,169.70 is: 88,562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,925.68 : 154,472.18 = 64,169.70 : x
  2. Step 2: Convert to fraction form
    111,925.68/154,472.18 = 64,169.70/x
  3. Step 3: Cross multiply
    111,925.68x = 154,472.18 × 64,169.70
  4. Step 4: Simplify right side
    111,925.68x = 9,912,433,128.10
  5. Step 5: Solve for x
    x = 9,912,433,128.10/111,925.68
  6. Step 6: Final answer
    x = 88,562.63

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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.