Home / 126,150.20-189,225.30-86,587.37

Finding the Fourth Proportional to 126,150.20, 189,225.30 and 86,587.37

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Solution

The fourth proportional to 126,150.20, 189,225.30 and 86,587.37 is: 129,881.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,150.20 : 189,225.30 = 86,587.37 : x
  2. Step 2: Convert to fraction form
    126,150.20/189,225.30 = 86,587.37/x
  3. Step 3: Cross multiply
    126,150.20x = 189,225.30 × 86,587.37
  4. Step 4: Simplify right side
    126,150.20x = 16,384,521,064.46
  5. Step 5: Solve for x
    x = 16,384,521,064.46/126,150.20
  6. Step 6: Final answer
    x = 129,881.06

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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.