Home / 145,836.68-218,508.70-89,559.40

Finding the Fourth Proportional to 145,836.68, 218,508.70 and 89,559.40

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Solution

The fourth proportional to 145,836.68, 218,508.70 and 89,559.40 is: 134,187.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,836.68 : 218,508.70 = 89,559.40 : x
  2. Step 2: Convert to fraction form
    145,836.68/218,508.70 = 89,559.40/x
  3. Step 3: Cross multiply
    145,836.68x = 218,508.70 × 89,559.40
  4. Step 4: Simplify right side
    145,836.68x = 19,569,508,066.78
  5. Step 5: Solve for x
    x = 19,569,508,066.78/145,836.68
  6. Step 6: Final answer
    x = 134,187.83

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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.