Home / 138,789.65-208,094.27-54,558.06

Finding the Fourth Proportional to 138,789.65, 208,094.27 and 54,558.06

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Solution

The fourth proportional to 138,789.65, 208,094.27 and 54,558.06 is: 81,801.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,789.65 : 208,094.27 = 54,558.06 : x
  2. Step 2: Convert to fraction form
    138,789.65/208,094.27 = 54,558.06/x
  3. Step 3: Cross multiply
    138,789.65x = 208,094.27 × 54,558.06
  4. Step 4: Simplify right side
    138,789.65x = 11,353,218,615.17
  5. Step 5: Solve for x
    x = 11,353,218,615.17/138,789.65
  6. Step 6: Final answer
    x = 81,801.62

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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.