Home / 100,016.30-138,035.55-57,576.62

Finding the Fourth Proportional to 100,016.30, 138,035.55 and 57,576.62

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Solution

The fourth proportional to 100,016.30, 138,035.55 and 57,576.62 is: 79,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,016.30 : 138,035.55 = 57,576.62 : x
  2. Step 2: Convert to fraction form
    100,016.30/138,035.55 = 57,576.62/x
  3. Step 3: Cross multiply
    100,016.30x = 138,035.55 × 57,576.62
  4. Step 4: Simplify right side
    100,016.30x = 7,947,620,408.84
  5. Step 5: Solve for x
    x = 7,947,620,408.84/100,016.30
  6. Step 6: Final answer
    x = 79,463.25

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1.5x scale

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.