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Finding the Fourth Proportional to 145,539, 200,853.18 and 88,217.88

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Solution

The fourth proportional to 145,539, 200,853.18 and 88,217.88 is: 121,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,539 : 200,853.18 = 88,217.88 : x
  2. Step 2: Convert to fraction form
    145,539/200,853.18 = 88,217.88/x
  3. Step 3: Cross multiply
    145,539x = 200,853.18 × 88,217.88
  4. Step 4: Simplify right side
    145,539x = 17,718,841,730.86
  5. Step 5: Solve for x
    x = 17,718,841,730.86/145,539
  6. Step 6: Final answer
    x = 121,746.35

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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.