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Finding the Fourth Proportional to 159,687.48, 220,370.31 and 88,070.25

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Solution

The fourth proportional to 159,687.48, 220,370.31 and 88,070.25 is: 121,537.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,687.48 : 220,370.31 = 88,070.25 : x
  2. Step 2: Convert to fraction form
    159,687.48/220,370.31 = 88,070.25/x
  3. Step 3: Cross multiply
    159,687.48x = 220,370.31 × 88,070.25
  4. Step 4: Simplify right side
    159,687.48x = 19,408,068,294.28
  5. Step 5: Solve for x
    x = 19,408,068,294.28/159,687.48
  6. Step 6: Final answer
    x = 121,537.82

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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.