Home / 112,877.28-155,739.12-88,929.62

Finding the Fourth Proportional to 112,877.28, 155,739.12 and 88,929.62

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Solution

The fourth proportional to 112,877.28, 155,739.12 and 88,929.62 is: 122,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,877.28 : 155,739.12 = 88,929.62 : x
  2. Step 2: Convert to fraction form
    112,877.28/155,739.12 = 88,929.62/x
  3. Step 3: Cross multiply
    112,877.28x = 155,739.12 × 88,929.62
  4. Step 4: Simplify right side
    112,877.28x = 13,849,820,760.73
  5. Step 5: Solve for x
    x = 13,849,820,760.73/112,877.28
  6. Step 6: Final answer
    x = 122,698.04

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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.