Home / 218,140.06-300,932.25-127,499.86

Finding the Fourth Proportional to 218,140.06, 300,932.25 and 127,499.86

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Solution

The fourth proportional to 218,140.06, 300,932.25 and 127,499.86 is: 175,890.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,140.06 : 300,932.25 = 127,499.86 : x
  2. Step 2: Convert to fraction form
    218,140.06/300,932.25 = 127,499.86/x
  3. Step 3: Cross multiply
    218,140.06x = 300,932.25 × 127,499.86
  4. Step 4: Simplify right side
    218,140.06x = 38,368,819,744.49
  5. Step 5: Solve for x
    x = 38,368,819,744.49/218,140.06
  6. Step 6: Final answer
    x = 175,890.75

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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.