Home / 158,610.14-218,861.76-90,631.52

Finding the Fourth Proportional to 158,610.14, 218,861.76 and 90,631.52

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Solution

The fourth proportional to 158,610.14, 218,861.76 and 90,631.52 is: 125,059.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,610.14 : 218,861.76 = 90,631.52 : x
  2. Step 2: Convert to fraction form
    158,610.14/218,861.76 = 90,631.52/x
  3. Step 3: Cross multiply
    158,610.14x = 218,861.76 × 90,631.52
  4. Step 4: Simplify right side
    158,610.14x = 19,835,773,978.68
  5. Step 5: Solve for x
    x = 19,835,773,978.68/158,610.14
  6. Step 6: Final answer
    x = 125,059.94

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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.