Home / 101,335.26-151,920.90-42,215.34

Finding the Fourth Proportional to 101,335.26, 151,920.90 and 42,215.34

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Solution

The fourth proportional to 101,335.26, 151,920.90 and 42,215.34 is: 63,288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,335.26 : 151,920.90 = 42,215.34 : x
  2. Step 2: Convert to fraction form
    101,335.26/151,920.90 = 42,215.34/x
  3. Step 3: Cross multiply
    101,335.26x = 151,920.90 × 42,215.34
  4. Step 4: Simplify right side
    101,335.26x = 6,413,392,446.61
  5. Step 5: Solve for x
    x = 6,413,392,446.61/101,335.26
  6. Step 6: Final answer
    x = 63,288.85

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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.