Home / 137,572.24-206,081.88-71,770

Finding the Fourth Proportional to 137,572.24, 206,081.88 and 71,770

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Solution

The fourth proportional to 137,572.24, 206,081.88 and 71,770 is: 107,510.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,572.24 : 206,081.88 = 71,770 : x
  2. Step 2: Convert to fraction form
    137,572.24/206,081.88 = 71,770/x
  3. Step 3: Cross multiply
    137,572.24x = 206,081.88 × 71,770
  4. Step 4: Simplify right side
    137,572.24x = 14,790,496,527.60
  5. Step 5: Solve for x
    x = 14,790,496,527.60/137,572.24
  6. Step 6: Final answer
    x = 107,510.76

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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.