Home / 136,049.85-187,740.75-75,618.42

Finding the Fourth Proportional to 136,049.85, 187,740.75 and 75,618.42

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Solution

The fourth proportional to 136,049.85, 187,740.75 and 75,618.42 is: 104,348.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,049.85 : 187,740.75 = 75,618.42 : x
  2. Step 2: Convert to fraction form
    136,049.85/187,740.75 = 75,618.42/x
  3. Step 3: Cross multiply
    136,049.85x = 187,740.75 × 75,618.42
  4. Step 4: Simplify right side
    136,049.85x = 14,196,658,464.16
  5. Step 5: Solve for x
    x = 14,196,658,464.16/136,049.85
  6. Step 6: Final answer
    x = 104,348.95

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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.