Home / 99,871.41-138,529.02-96,280.68

Finding the Fourth Proportional to 99,871.41, 138,529.02 and 96,280.68

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Solution

The fourth proportional to 99,871.41, 138,529.02 and 96,280.68 is: 133,548.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,871.41 : 138,529.02 = 96,280.68 : x
  2. Step 2: Convert to fraction form
    99,871.41/138,529.02 = 96,280.68/x
  3. Step 3: Cross multiply
    99,871.41x = 138,529.02 × 96,280.68
  4. Step 4: Simplify right side
    99,871.41x = 13,337,668,245.33
  5. Step 5: Solve for x
    x = 13,337,668,245.33/99,871.41
  6. Step 6: Final answer
    x = 133,548.41

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.