Home / 189,585.20-284,159.08-71,181

Finding the Fourth Proportional to 189,585.20, 284,159.08 and 71,181

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Solution

The fourth proportional to 189,585.20, 284,159.08 and 71,181 is: 106,689.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,585.20 : 284,159.08 = 71,181 : x
  2. Step 2: Convert to fraction form
    189,585.20/284,159.08 = 71,181/x
  3. Step 3: Cross multiply
    189,585.20x = 284,159.08 × 71,181
  4. Step 4: Simplify right side
    189,585.20x = 20,226,727,473.48
  5. Step 5: Solve for x
    x = 20,226,727,473.48/189,585.20
  6. Step 6: Final answer
    x = 106,689.38

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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.