Home / 101,280.73-139,723.51-60,971.15

Finding the Fourth Proportional to 101,280.73, 139,723.51 and 60,971.15

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Solution

The fourth proportional to 101,280.73, 139,723.51 and 60,971.15 is: 84,113.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,280.73 : 139,723.51 = 60,971.15 : x
  2. Step 2: Convert to fraction form
    101,280.73/139,723.51 = 60,971.15/x
  3. Step 3: Cross multiply
    101,280.73x = 139,723.51 × 60,971.15
  4. Step 4: Simplify right side
    101,280.73x = 8,519,103,086.74
  5. Step 5: Solve for x
    x = 8,519,103,086.74/101,280.73
  6. Step 6: Final answer
    x = 84,113.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.