Home / 112,079.28-168,086.12-92,308.80

Finding the Fourth Proportional to 112,079.28, 168,086.12 and 92,308.80

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Solution

The fourth proportional to 112,079.28, 168,086.12 and 92,308.80 is: 138,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,079.28 : 168,086.12 = 92,308.80 : x
  2. Step 2: Convert to fraction form
    112,079.28/168,086.12 = 92,308.80/x
  3. Step 3: Cross multiply
    112,079.28x = 168,086.12 × 92,308.80
  4. Step 4: Simplify right side
    112,079.28x = 15,515,828,033.86
  5. Step 5: Solve for x
    x = 15,515,828,033.86/112,079.28
  6. Step 6: Final answer
    x = 138,436.19

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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.