Home / 189,882.11-284,963.35-90,042.64

Finding the Fourth Proportional to 189,882.11, 284,963.35 and 90,042.64

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Solution

The fourth proportional to 189,882.11, 284,963.35 and 90,042.64 is: 135,130.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,882.11 : 284,963.35 = 90,042.64 : x
  2. Step 2: Convert to fraction form
    189,882.11/284,963.35 = 90,042.64/x
  3. Step 3: Cross multiply
    189,882.11x = 284,963.35 × 90,042.64
  4. Step 4: Simplify right side
    189,882.11x = 25,658,852,337.24
  5. Step 5: Solve for x
    x = 25,658,852,337.24/189,882.11
  6. Step 6: Final answer
    x = 135,130.44

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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.