Home / 145,967.20-218,957.28-57,212.80

Finding the Fourth Proportional to 145,967.20, 218,957.28 and 57,212.80

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Solution

The fourth proportional to 145,967.20, 218,957.28 and 57,212.80 is: 85,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,967.20 : 218,957.28 = 57,212.80 : x
  2. Step 2: Convert to fraction form
    145,967.20/218,957.28 = 57,212.80/x
  3. Step 3: Cross multiply
    145,967.20x = 218,957.28 × 57,212.80
  4. Step 4: Simplify right side
    145,967.20x = 12,527,159,069.18
  5. Step 5: Solve for x
    x = 12,527,159,069.18/145,967.20
  6. Step 6: Final answer
    x = 85,821.74

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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.