Home / 138,848.29-208,132.18-54,667.52

Finding the Fourth Proportional to 138,848.29, 208,132.18 and 54,667.52

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Solution

The fourth proportional to 138,848.29, 208,132.18 and 54,667.52 is: 81,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,848.29 : 208,132.18 = 54,667.52 : x
  2. Step 2: Convert to fraction form
    138,848.29/208,132.18 = 54,667.52/x
  3. Step 3: Cross multiply
    138,848.29x = 208,132.18 × 54,667.52
  4. Step 4: Simplify right side
    138,848.29x = 11,378,070,961.62
  5. Step 5: Solve for x
    x = 11,378,070,961.62/138,848.29
  6. Step 6: Final answer
    x = 81,946.06

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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.