Home / 135,031.28-186,395.65-120,859.52

Finding the Fourth Proportional to 135,031.28, 186,395.65 and 120,859.52

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Solution

The fourth proportional to 135,031.28, 186,395.65 and 120,859.52 is: 166,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,031.28 : 186,395.65 = 120,859.52 : x
  2. Step 2: Convert to fraction form
    135,031.28/186,395.65 = 120,859.52/x
  3. Step 3: Cross multiply
    135,031.28x = 186,395.65 × 120,859.52
  4. Step 4: Simplify right side
    135,031.28x = 22,527,687,554.96
  5. Step 5: Solve for x
    x = 22,527,687,554.96/135,031.28
  6. Step 6: Final answer
    x = 166,833.11

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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.