Home / 138,693.30-208,049.28-48,725.08

Finding the Fourth Proportional to 138,693.30, 208,049.28 and 48,725.08

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Solution

The fourth proportional to 138,693.30, 208,049.28 and 48,725.08 is: 73,090.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,693.30 : 208,049.28 = 48,725.08 : x
  2. Step 2: Convert to fraction form
    138,693.30/208,049.28 = 48,725.08/x
  3. Step 3: Cross multiply
    138,693.30x = 208,049.28 × 48,725.08
  4. Step 4: Simplify right side
    138,693.30x = 10,137,217,109.10
  5. Step 5: Solve for x
    x = 10,137,217,109.10/138,693.30
  6. Step 6: Final answer
    x = 73,090.89

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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.