Home / 134,719.62-185,911.95-74,292.78

Finding the Fourth Proportional to 134,719.62, 185,911.95 and 74,292.78

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Solution

The fourth proportional to 134,719.62, 185,911.95 and 74,292.78 is: 102,523.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,719.62 : 185,911.95 = 74,292.78 : x
  2. Step 2: Convert to fraction form
    134,719.62/185,911.95 = 74,292.78/x
  3. Step 3: Cross multiply
    134,719.62x = 185,911.95 × 74,292.78
  4. Step 4: Simplify right side
    134,719.62x = 13,811,915,600.72
  5. Step 5: Solve for x
    x = 13,811,915,600.72/134,719.62
  6. Step 6: Final answer
    x = 102,523.42

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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.