Home / 112,419.15-168,711.90-53,254.95

Finding the Fourth Proportional to 112,419.15, 168,711.90 and 53,254.95

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Solution

The fourth proportional to 112,419.15, 168,711.90 and 53,254.95 is: 79,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,419.15 : 168,711.90 = 53,254.95 : x
  2. Step 2: Convert to fraction form
    112,419.15/168,711.90 = 53,254.95/x
  3. Step 3: Cross multiply
    112,419.15x = 168,711.90 × 53,254.95
  4. Step 4: Simplify right side
    112,419.15x = 8,984,743,798.91
  5. Step 5: Solve for x
    x = 8,984,743,798.91/112,419.15
  6. Step 6: Final answer
    x = 79,921.83

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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.