Home / 101,439.91-152,173.73-42,261.76

Finding the Fourth Proportional to 101,439.91, 152,173.73 and 42,261.76

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Solution

The fourth proportional to 101,439.91, 152,173.73 and 42,261.76 is: 63,398.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,439.91 : 152,173.73 = 42,261.76 : x
  2. Step 2: Convert to fraction form
    101,439.91/152,173.73 = 42,261.76/x
  3. Step 3: Cross multiply
    101,439.91x = 152,173.73 × 42,261.76
  4. Step 4: Simplify right side
    101,439.91x = 6,431,129,655.56
  5. Step 5: Solve for x
    x = 6,431,129,655.56/101,439.91
  6. Step 6: Final answer
    x = 63,398.42

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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.