Home / 112,319.28-168,429.12-42,149.04

Finding the Fourth Proportional to 112,319.28, 168,429.12 and 42,149.04

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Solution

The fourth proportional to 112,319.28, 168,429.12 and 42,149.04 is: 63,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,319.28 : 168,429.12 = 42,149.04 : x
  2. Step 2: Convert to fraction form
    112,319.28/168,429.12 = 42,149.04/x
  3. Step 3: Cross multiply
    112,319.28x = 168,429.12 × 42,149.04
  4. Step 4: Simplify right side
    112,319.28x = 7,099,125,716.04
  5. Step 5: Solve for x
    x = 7,099,125,716.04/112,319.28
  6. Step 6: Final answer
    x = 63,204.87

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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.