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Finding the Fourth Proportional to 110,755.68, 152,789.63 and 72,498.39

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Solution

The fourth proportional to 110,755.68, 152,789.63 and 72,498.39 is: 100,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,755.68 : 152,789.63 = 72,498.39 : x
  2. Step 2: Convert to fraction form
    110,755.68/152,789.63 = 72,498.39/x
  3. Step 3: Cross multiply
    110,755.68x = 152,789.63 × 72,498.39
  4. Step 4: Simplify right side
    110,755.68x = 11,077,001,821.20
  5. Step 5: Solve for x
    x = 11,077,001,821.20/110,755.68
  6. Step 6: Final answer
    x = 100,012.95

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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.