Home / 120,835.40-181,253.10-114,711.80

Finding the Fourth Proportional to 120,835.40, 181,253.10 and 114,711.80

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Solution

The fourth proportional to 120,835.40, 181,253.10 and 114,711.80 is: 172,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,835.40 : 181,253.10 = 114,711.80 : x
  2. Step 2: Convert to fraction form
    120,835.40/181,253.10 = 114,711.80/x
  3. Step 3: Cross multiply
    120,835.40x = 181,253.10 × 114,711.80
  4. Step 4: Simplify right side
    120,835.40x = 20,791,869,356.58
  5. Step 5: Solve for x
    x = 20,791,869,356.58/120,835.40
  6. Step 6: Final answer
    x = 172,067.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.