Home / 131,825.10-181,929.84-74,474.95

Finding the Fourth Proportional to 131,825.10, 181,929.84 and 74,474.95

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Solution

The fourth proportional to 131,825.10, 181,929.84 and 74,474.95 is: 102,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,825.10 : 181,929.84 = 74,474.95 : x
  2. Step 2: Convert to fraction form
    131,825.10/181,929.84 = 74,474.95/x
  3. Step 3: Cross multiply
    131,825.10x = 181,929.84 × 74,474.95
  4. Step 4: Simplify right side
    131,825.10x = 13,549,216,178.99
  5. Step 5: Solve for x
    x = 13,549,216,178.99/131,825.10
  6. Step 6: Final answer
    x = 102,781.76

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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.