Home / 90,248.26-124,264.40-80,159.16

Finding the Fourth Proportional to 90,248.26, 124,264.40 and 80,159.16

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Solution

The fourth proportional to 90,248.26, 124,264.40 and 80,159.16 is: 110,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,248.26 : 124,264.40 = 80,159.16 : x
  2. Step 2: Convert to fraction form
    90,248.26/124,264.40 = 80,159.16/x
  3. Step 3: Cross multiply
    90,248.26x = 124,264.40 × 80,159.16
  4. Step 4: Simplify right side
    90,248.26x = 9,960,929,921.90
  5. Step 5: Solve for x
    x = 9,960,929,921.90/90,248.26
  6. Step 6: Final answer
    x = 110,372.54

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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.