Home / 154,031.52-230,896.88-75,142.56

Finding the Fourth Proportional to 154,031.52, 230,896.88 and 75,142.56

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Solution

The fourth proportional to 154,031.52, 230,896.88 and 75,142.56 is: 112,640.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,031.52 : 230,896.88 = 75,142.56 : x
  2. Step 2: Convert to fraction form
    154,031.52/230,896.88 = 75,142.56/x
  3. Step 3: Cross multiply
    154,031.52x = 230,896.88 × 75,142.56
  4. Step 4: Simplify right side
    154,031.52x = 17,350,182,659.21
  5. Step 5: Solve for x
    x = 17,350,182,659.21/154,031.52
  6. Step 6: Final answer
    x = 112,640.47

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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.