Home / 137,381.31-206,148.51-74,200.10

Finding the Fourth Proportional to 137,381.31, 206,148.51 and 74,200.10

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Solution

The fourth proportional to 137,381.31, 206,148.51 and 74,200.10 is: 111,341.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,381.31 : 206,148.51 = 74,200.10 : x
  2. Step 2: Convert to fraction form
    137,381.31/206,148.51 = 74,200.10/x
  3. Step 3: Cross multiply
    137,381.31x = 206,148.51 × 74,200.10
  4. Step 4: Simplify right side
    137,381.31x = 15,296,239,026.11
  5. Step 5: Solve for x
    x = 15,296,239,026.11/137,381.31
  6. Step 6: Final answer
    x = 111,341.48

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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.