Home / 112,773.11-169,139.23-45,302.42

Finding the Fourth Proportional to 112,773.11, 169,139.23 and 45,302.42

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Solution

The fourth proportional to 112,773.11, 169,139.23 and 45,302.42 is: 67,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,773.11 : 169,139.23 = 45,302.42 : x
  2. Step 2: Convert to fraction form
    112,773.11/169,139.23 = 45,302.42/x
  3. Step 3: Cross multiply
    112,773.11x = 169,139.23 × 45,302.42
  4. Step 4: Simplify right side
    112,773.11x = 7,662,416,209.42
  5. Step 5: Solve for x
    x = 7,662,416,209.42/112,773.11
  6. Step 6: Final answer
    x = 67,945.42

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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.