Home / 138,018.02-207,070.77-49,269.56

Finding the Fourth Proportional to 138,018.02, 207,070.77 and 49,269.56

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Solution

The fourth proportional to 138,018.02, 207,070.77 and 49,269.56 is: 73,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,018.02 : 207,070.77 = 49,269.56 : x
  2. Step 2: Convert to fraction form
    138,018.02/207,070.77 = 49,269.56/x
  3. Step 3: Cross multiply
    138,018.02x = 207,070.77 × 49,269.56
  4. Step 4: Simplify right side
    138,018.02x = 10,202,286,429.20
  5. Step 5: Solve for x
    x = 10,202,286,429.20/138,018.02
  6. Step 6: Final answer
    x = 73,919.96

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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.