Home / 112,521.65-155,294.57-64,777.01

Finding the Fourth Proportional to 112,521.65, 155,294.57 and 64,777.01

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Solution

The fourth proportional to 112,521.65, 155,294.57 and 64,777.01 is: 89,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,521.65 : 155,294.57 = 64,777.01 : x
  2. Step 2: Convert to fraction form
    112,521.65/155,294.57 = 64,777.01/x
  3. Step 3: Cross multiply
    112,521.65x = 155,294.57 × 64,777.01
  4. Step 4: Simplify right side
    112,521.65x = 10,059,517,589.95
  5. Step 5: Solve for x
    x = 10,059,517,589.95/112,521.65
  6. Step 6: Final answer
    x = 89,400.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.