Home / 126,150.18-189,225.27-86,587.35

Finding the Fourth Proportional to 126,150.18, 189,225.27 and 86,587.35

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Solution

The fourth proportional to 126,150.18, 189,225.27 and 86,587.35 is: 129,881.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,150.18 : 189,225.27 = 86,587.35 : x
  2. Step 2: Convert to fraction form
    126,150.18/189,225.27 = 86,587.35/x
  3. Step 3: Cross multiply
    126,150.18x = 189,225.27 × 86,587.35
  4. Step 4: Simplify right side
    126,150.18x = 16,384,514,682.33
  5. Step 5: Solve for x
    x = 16,384,514,682.33/126,150.18
  6. Step 6: Final answer
    x = 129,881.03

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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.