Home / 145,162.80-217,744.22-45,331.54

Finding the Fourth Proportional to 145,162.80, 217,744.22 and 45,331.54

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Solution

The fourth proportional to 145,162.80, 217,744.22 and 45,331.54 is: 67,997.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162.80 : 217,744.22 = 45,331.54 : x
  2. Step 2: Convert to fraction form
    145,162.80/217,744.22 = 45,331.54/x
  3. Step 3: Cross multiply
    145,162.80x = 217,744.22 × 45,331.54
  4. Step 4: Simplify right side
    145,162.80x = 9,870,680,818.70
  5. Step 5: Solve for x
    x = 9,870,680,818.70/145,162.80
  6. Step 6: Final answer
    x = 67,997.32

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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.