Home / 117,645.20-162,351.96-63,931.04

Finding the Fourth Proportional to 117,645.20, 162,351.96 and 63,931.04

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Solution

The fourth proportional to 117,645.20, 162,351.96 and 63,931.04 is: 88,225.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,645.20 : 162,351.96 = 63,931.04 : x
  2. Step 2: Convert to fraction form
    117,645.20/162,351.96 = 63,931.04/x
  3. Step 3: Cross multiply
    117,645.20x = 162,351.96 × 63,931.04
  4. Step 4: Simplify right side
    117,645.20x = 10,379,329,648.84
  5. Step 5: Solve for x
    x = 10,379,329,648.84/117,645.20
  6. Step 6: Final answer
    x = 88,225.70

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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.