Home / 124,638.42-172,000.08-68,049.79

Finding the Fourth Proportional to 124,638.42, 172,000.08 and 68,049.79

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Solution

The fourth proportional to 124,638.42, 172,000.08 and 68,049.79 is: 93,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,638.42 : 172,000.08 = 68,049.79 : x
  2. Step 2: Convert to fraction form
    124,638.42/172,000.08 = 68,049.79/x
  3. Step 3: Cross multiply
    124,638.42x = 172,000.08 × 68,049.79
  4. Step 4: Simplify right side
    124,638.42x = 11,704,569,323.98
  5. Step 5: Solve for x
    x = 11,704,569,323.98/124,638.42
  6. Step 6: Final answer
    x = 93,908.20

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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.