Home / 101,217.13-151,722-42,087.13

Finding the Fourth Proportional to 101,217.13, 151,722 and 42,087.13

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Solution

The fourth proportional to 101,217.13, 151,722 and 42,087.13 is: 63,087.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,217.13 : 151,722 = 42,087.13 : x
  2. Step 2: Convert to fraction form
    101,217.13/151,722 = 42,087.13/x
  3. Step 3: Cross multiply
    101,217.13x = 151,722 × 42,087.13
  4. Step 4: Simplify right side
    101,217.13x = 6,385,543,537.86
  5. Step 5: Solve for x
    x = 6,385,543,537.86/101,217.13
  6. Step 6: Final answer
    x = 63,087.58

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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.