Home / 137,352.81-206,965.15-112,939.75

Finding the Fourth Proportional to 137,352.81, 206,965.15 and 112,939.75

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Solution

The fourth proportional to 137,352.81, 206,965.15 and 112,939.75 is: 170,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,352.81 : 206,965.15 = 112,939.75 : x
  2. Step 2: Convert to fraction form
    137,352.81/206,965.15 = 112,939.75/x
  3. Step 3: Cross multiply
    137,352.81x = 206,965.15 × 112,939.75
  4. Step 4: Simplify right side
    137,352.81x = 23,374,590,700.19
  5. Step 5: Solve for x
    x = 23,374,590,700.19/137,352.81
  6. Step 6: Final answer
    x = 170,179.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.