Home / 145,860.48-218,789.76-40,680

Finding the Fourth Proportional to 145,860.48, 218,789.76 and 40,680

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Solution

The fourth proportional to 145,860.48, 218,789.76 and 40,680 is: 61,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,860.48 : 218,789.76 = 40,680 : x
  2. Step 2: Convert to fraction form
    145,860.48/218,789.76 = 40,680/x
  3. Step 3: Cross multiply
    145,860.48x = 218,789.76 × 40,680
  4. Step 4: Simplify right side
    145,860.48x = 8,900,367,436.80
  5. Step 5: Solve for x
    x = 8,900,367,436.80/145,860.48
  6. Step 6: Final answer
    x = 61,019.73

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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.