Home / 156,518.93-215,996.10-88,534.43

Finding the Fourth Proportional to 156,518.93, 215,996.10 and 88,534.43

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Solution

The fourth proportional to 156,518.93, 215,996.10 and 88,534.43 is: 122,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,518.93 : 215,996.10 = 88,534.43 : x
  2. Step 2: Convert to fraction form
    156,518.93/215,996.10 = 88,534.43/x
  3. Step 3: Cross multiply
    156,518.93x = 215,996.10 × 88,534.43
  4. Step 4: Simplify right side
    156,518.93x = 19,123,091,803.71
  5. Step 5: Solve for x
    x = 19,123,091,803.71/156,518.93
  6. Step 6: Final answer
    x = 122,177.51

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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.