Home / 145,938.20-218,891.10-40,767.80

Finding the Fourth Proportional to 145,938.20, 218,891.10 and 40,767.80

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Solution

The fourth proportional to 145,938.20, 218,891.10 and 40,767.80 is: 61,147.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,938.20 : 218,891.10 = 40,767.80 : x
  2. Step 2: Convert to fraction form
    145,938.20/218,891.10 = 40,767.80/x
  3. Step 3: Cross multiply
    145,938.20x = 218,891.10 × 40,767.80
  4. Step 4: Simplify right side
    145,938.20x = 8,923,708,586.58
  5. Step 5: Solve for x
    x = 8,923,708,586.58/145,938.20
  6. Step 6: Final answer
    x = 61,147.17

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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.