Home / 145,724.42-218,306.19-89,400.05

Finding the Fourth Proportional to 145,724.42, 218,306.19 and 89,400.05

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Solution

The fourth proportional to 145,724.42, 218,306.19 and 89,400.05 is: 133,928.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,724.42 : 218,306.19 = 89,400.05 : x
  2. Step 2: Convert to fraction form
    145,724.42/218,306.19 = 89,400.05/x
  3. Step 3: Cross multiply
    145,724.42x = 218,306.19 × 89,400.05
  4. Step 4: Simplify right side
    145,724.42x = 19,516,585,088.77
  5. Step 5: Solve for x
    x = 19,516,585,088.77/145,724.42
  6. Step 6: Final answer
    x = 133,928.04

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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.