Home / 112,963.62-156,052.02-90,272.88

Finding the Fourth Proportional to 112,963.62, 156,052.02 and 90,272.88

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Solution

The fourth proportional to 112,963.62, 156,052.02 and 90,272.88 is: 124,706.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,963.62 : 156,052.02 = 90,272.88 : x
  2. Step 2: Convert to fraction form
    112,963.62/156,052.02 = 90,272.88/x
  3. Step 3: Cross multiply
    112,963.62x = 156,052.02 × 90,272.88
  4. Step 4: Simplify right side
    112,963.62x = 14,087,265,275.22
  5. Step 5: Solve for x
    x = 14,087,265,275.22/112,963.62
  6. Step 6: Final answer
    x = 124,706.21

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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.