Home / 137,381.19-206,148.32-74,199.97

Finding the Fourth Proportional to 137,381.19, 206,148.32 and 74,199.97

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Solution

The fourth proportional to 137,381.19, 206,148.32 and 74,199.97 is: 111,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,381.19 : 206,148.32 = 74,199.97 : x
  2. Step 2: Convert to fraction form
    137,381.19/206,148.32 = 74,199.97/x
  3. Step 3: Cross multiply
    137,381.19x = 206,148.32 × 74,199.97
  4. Step 4: Simplify right side
    137,381.19x = 15,296,199,159.55
  5. Step 5: Solve for x
    x = 15,296,199,159.55/137,381.19
  6. Step 6: Final answer
    x = 111,341.29

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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.