Home / 151,211.80-208,658.73-87,553.90

Finding the Fourth Proportional to 151,211.80, 208,658.73 and 87,553.90

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Solution

The fourth proportional to 151,211.80, 208,658.73 and 87,553.90 is: 120,816.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,211.80 : 208,658.73 = 87,553.90 : x
  2. Step 2: Convert to fraction form
    151,211.80/208,658.73 = 87,553.90/x
  3. Step 3: Cross multiply
    151,211.80x = 208,658.73 × 87,553.90
  4. Step 4: Simplify right side
    151,211.80x = 18,268,885,580.55
  5. Step 5: Solve for x
    x = 18,268,885,580.55/151,211.80
  6. Step 6: Final answer
    x = 120,816.53

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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.