Home / 138,091.76-207,181.16-49,343.28

Finding the Fourth Proportional to 138,091.76, 207,181.16 and 49,343.28

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Solution

The fourth proportional to 138,091.76, 207,181.16 and 49,343.28 is: 74,030.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,091.76 : 207,181.16 = 49,343.28 : x
  2. Step 2: Convert to fraction form
    138,091.76/207,181.16 = 49,343.28/x
  3. Step 3: Cross multiply
    138,091.76x = 207,181.16 × 49,343.28
  4. Step 4: Simplify right side
    138,091.76x = 10,222,997,988.60
  5. Step 5: Solve for x
    x = 10,222,997,988.60/138,091.76
  6. Step 6: Final answer
    x = 74,030.47

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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.