Home / 126,150.35-189,225.54-86,587.52

Finding the Fourth Proportional to 126,150.35, 189,225.54 and 86,587.52

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Solution

The fourth proportional to 126,150.35, 189,225.54 and 86,587.52 is: 129,881.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,150.35 : 189,225.54 = 86,587.52 : x
  2. Step 2: Convert to fraction form
    126,150.35/189,225.54 = 86,587.52/x
  3. Step 3: Cross multiply
    126,150.35x = 189,225.54 × 86,587.52
  4. Step 4: Simplify right side
    126,150.35x = 16,384,569,283.13
  5. Step 5: Solve for x
    x = 16,384,569,283.13/126,150.35
  6. Step 6: Final answer
    x = 129,881.29

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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.