Home / 112,314.20-155,104.47-88,399.35

Finding the Fourth Proportional to 112,314.20, 155,104.47 and 88,399.35

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Solution

The fourth proportional to 112,314.20, 155,104.47 and 88,399.35 is: 122,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,314.20 : 155,104.47 = 88,399.35 : x
  2. Step 2: Convert to fraction form
    112,314.20/155,104.47 = 88,399.35/x
  3. Step 3: Cross multiply
    112,314.20x = 155,104.47 × 88,399.35
  4. Step 4: Simplify right side
    112,314.20x = 13,711,134,330.09
  5. Step 5: Solve for x
    x = 13,711,134,330.09/112,314.20
  6. Step 6: Final answer
    x = 122,078.37

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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.