Home / 155,926.40-215,037.12-102,192

Finding the Fourth Proportional to 155,926.40, 215,037.12 and 102,192

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Solution

The fourth proportional to 155,926.40, 215,037.12 and 102,192 is: 140,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,926.40 : 215,037.12 = 102,192 : x
  2. Step 2: Convert to fraction form
    155,926.40/215,037.12 = 102,192/x
  3. Step 3: Cross multiply
    155,926.40x = 215,037.12 × 102,192
  4. Step 4: Simplify right side
    155,926.40x = 21,975,073,367.04
  5. Step 5: Solve for x
    x = 21,975,073,367.04/155,926.40
  6. Step 6: Final answer
    x = 140,932.35

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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.