Home / 218,845.80-328,527.90-124,151.40

Finding the Fourth Proportional to 218,845.80, 328,527.90 and 124,151.40

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Solution

The fourth proportional to 218,845.80, 328,527.90 and 124,151.40 is: 186,374.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,845.80 : 328,527.90 = 124,151.40 : x
  2. Step 2: Convert to fraction form
    218,845.80/328,527.90 = 124,151.40/x
  3. Step 3: Cross multiply
    218,845.80x = 328,527.90 × 124,151.40
  4. Step 4: Simplify right side
    218,845.80x = 40,787,198,724.06
  5. Step 5: Solve for x
    x = 40,787,198,724.06/218,845.80
  6. Step 6: Final answer
    x = 186,374.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.