Home / 145,419.50-218,134.10-40,229.66

Finding the Fourth Proportional to 145,419.50, 218,134.10 and 40,229.66

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Solution

The fourth proportional to 145,419.50, 218,134.10 and 40,229.66 is: 60,345.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,419.50 : 218,134.10 = 40,229.66 : x
  2. Step 2: Convert to fraction form
    145,419.50/218,134.10 = 40,229.66/x
  3. Step 3: Cross multiply
    145,419.50x = 218,134.10 × 40,229.66
  4. Step 4: Simplify right side
    145,419.50x = 8,775,460,677.41
  5. Step 5: Solve for x
    x = 8,775,460,677.41/145,419.50
  6. Step 6: Final answer
    x = 60,345.83

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1.5x scale

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.