Home / 145,557.20-218,335.80-40,377.20

Finding the Fourth Proportional to 145,557.20, 218,335.80 and 40,377.20

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Solution

The fourth proportional to 145,557.20, 218,335.80 and 40,377.20 is: 60,565.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,557.20 : 218,335.80 = 40,377.20 : x
  2. Step 2: Convert to fraction form
    145,557.20/218,335.80 = 40,377.20/x
  3. Step 3: Cross multiply
    145,557.20x = 218,335.80 × 40,377.20
  4. Step 4: Simplify right side
    145,557.20x = 8,815,788,263.76
  5. Step 5: Solve for x
    x = 8,815,788,263.76/145,557.20
  6. Step 6: Final answer
    x = 60,565.80

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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.