Home / 138,922.72-208,359.18-39,058.96

Finding the Fourth Proportional to 138,922.72, 208,359.18 and 39,058.96

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Solution

The fourth proportional to 138,922.72, 208,359.18 and 39,058.96 is: 58,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,922.72 : 208,359.18 = 39,058.96 : x
  2. Step 2: Convert to fraction form
    138,922.72/208,359.18 = 39,058.96/x
  3. Step 3: Cross multiply
    138,922.72x = 208,359.18 × 39,058.96
  4. Step 4: Simplify right side
    138,922.72x = 8,138,292,877.25
  5. Step 5: Solve for x
    x = 8,138,292,877.25/138,922.72
  6. Step 6: Final answer
    x = 58,581.44

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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.