Home / 138,888.16-208,344.54-39,049.22

Finding the Fourth Proportional to 138,888.16, 208,344.54 and 39,049.22

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Solution

The fourth proportional to 138,888.16, 208,344.54 and 39,049.22 is: 58,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,888.16 : 208,344.54 = 39,049.22 : x
  2. Step 2: Convert to fraction form
    138,888.16/208,344.54 = 39,049.22/x
  3. Step 3: Cross multiply
    138,888.16x = 208,344.54 × 39,049.22
  4. Step 4: Simplify right side
    138,888.16x = 8,135,690,541.29
  5. Step 5: Solve for x
    x = 8,135,690,541.29/138,888.16
  6. Step 6: Final answer
    x = 58,577.28

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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.