Home / 112,732.56-155,532.32-64,299.68

Finding the Fourth Proportional to 112,732.56, 155,532.32 and 64,299.68

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Solution

The fourth proportional to 112,732.56, 155,532.32 and 64,299.68 is: 88,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,732.56 : 155,532.32 = 64,299.68 : x
  2. Step 2: Convert to fraction form
    112,732.56/155,532.32 = 64,299.68/x
  3. Step 3: Cross multiply
    112,732.56x = 155,532.32 × 64,299.68
  4. Step 4: Simplify right side
    112,732.56x = 10,000,678,375.86
  5. Step 5: Solve for x
    x = 10,000,678,375.86/112,732.56
  6. Step 6: Final answer
    x = 88,711.53

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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.