Home / 120,603.12-166,514.76-75,350.04

Finding the Fourth Proportional to 120,603.12, 166,514.76 and 75,350.04

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Solution

The fourth proportional to 120,603.12, 166,514.76 and 75,350.04 is: 104,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,603.12 : 166,514.76 = 75,350.04 : x
  2. Step 2: Convert to fraction form
    120,603.12/166,514.76 = 75,350.04/x
  3. Step 3: Cross multiply
    120,603.12x = 166,514.76 × 75,350.04
  4. Step 4: Simplify right side
    120,603.12x = 12,546,893,826.59
  5. Step 5: Solve for x
    x = 12,546,893,826.59/120,603.12
  6. Step 6: Final answer
    x = 104,034.57

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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.