Home / 162,721.36-244,118.86-87,839.90

Finding the Fourth Proportional to 162,721.36, 244,118.86 and 87,839.90

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Solution

The fourth proportional to 162,721.36, 244,118.86 and 87,839.90 is: 131,779.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,721.36 : 244,118.86 = 87,839.90 : x
  2. Step 2: Convert to fraction form
    162,721.36/244,118.86 = 87,839.90/x
  3. Step 3: Cross multiply
    162,721.36x = 244,118.86 × 87,839.90
  4. Step 4: Simplify right side
    162,721.36x = 21,443,376,250.51
  5. Step 5: Solve for x
    x = 21,443,376,250.51/162,721.36
  6. Step 6: Final answer
    x = 131,779.73

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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.