Home / 159,705.60-220,385.77-88,081.35

Finding the Fourth Proportional to 159,705.60, 220,385.77 and 88,081.35

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Solution

The fourth proportional to 159,705.60, 220,385.77 and 88,081.35 is: 121,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,705.60 : 220,385.77 = 88,081.35 : x
  2. Step 2: Convert to fraction form
    159,705.60/220,385.77 = 88,081.35/x
  3. Step 3: Cross multiply
    159,705.60x = 220,385.77 × 88,081.35
  4. Step 4: Simplify right side
    159,705.60x = 19,411,876,142.39
  5. Step 5: Solve for x
    x = 19,411,876,142.39/159,705.60
  6. Step 6: Final answer
    x = 121,547.87

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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.