Home / 137,574.24-206,084.88-71,772

Finding the Fourth Proportional to 137,574.24, 206,084.88 and 71,772

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Solution

The fourth proportional to 137,574.24, 206,084.88 and 71,772 is: 107,513.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,574.24 : 206,084.88 = 71,772 : x
  2. Step 2: Convert to fraction form
    137,574.24/206,084.88 = 71,772/x
  3. Step 3: Cross multiply
    137,574.24x = 206,084.88 × 71,772
  4. Step 4: Simplify right side
    137,574.24x = 14,791,124,007.36
  5. Step 5: Solve for x
    x = 14,791,124,007.36/137,574.24
  6. Step 6: Final answer
    x = 107,513.76

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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.