Home / 145,678.50-218,517.82-40,498.38

Finding the Fourth Proportional to 145,678.50, 218,517.82 and 40,498.38

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Solution

The fourth proportional to 145,678.50, 218,517.82 and 40,498.38 is: 60,747.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,678.50 : 218,517.82 = 40,498.38 : x
  2. Step 2: Convert to fraction form
    145,678.50/218,517.82 = 40,498.38/x
  3. Step 3: Cross multiply
    145,678.50x = 218,517.82 × 40,498.38
  4. Step 4: Simplify right side
    145,678.50x = 8,849,617,609.89
  5. Step 5: Solve for x
    x = 8,849,617,609.89/145,678.50
  6. Step 6: Final answer
    x = 60,747.59

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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.