Home / 156,501.48-215,976.93-88,517.12

Finding the Fourth Proportional to 156,501.48, 215,976.93 and 88,517.12

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Solution

The fourth proportional to 156,501.48, 215,976.93 and 88,517.12 is: 122,156.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,501.48 : 215,976.93 = 88,517.12 : x
  2. Step 2: Convert to fraction form
    156,501.48/215,976.93 = 88,517.12/x
  3. Step 3: Cross multiply
    156,501.48x = 215,976.93 × 88,517.12
  4. Step 4: Simplify right side
    156,501.48x = 19,117,656,179.68
  5. Step 5: Solve for x
    x = 19,117,656,179.68/156,501.48
  6. Step 6: Final answer
    x = 122,156.39

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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.