Home / 126,125.15-189,182.25-31,353.35

Finding the Fourth Proportional to 126,125.15, 189,182.25 and 31,353.35

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Solution

The fourth proportional to 126,125.15, 189,182.25 and 31,353.35 is: 47,028.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,125.15 : 189,182.25 = 31,353.35 : x
  2. Step 2: Convert to fraction form
    126,125.15/189,182.25 = 31,353.35/x
  3. Step 3: Cross multiply
    126,125.15x = 189,182.25 × 31,353.35
  4. Step 4: Simplify right side
    126,125.15x = 5,931,496,352.13
  5. Step 5: Solve for x
    x = 5,931,496,352.13/126,125.15
  6. Step 6: Final answer
    x = 47,028.66

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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.