Home / 129,302.11-193,538.32-69,180.19

Finding the Fourth Proportional to 129,302.11, 193,538.32 and 69,180.19

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Solution

The fourth proportional to 129,302.11, 193,538.32 and 69,180.19 is: 103,548.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,302.11 : 193,538.32 = 69,180.19 : x
  2. Step 2: Convert to fraction form
    129,302.11/193,538.32 = 69,180.19/x
  3. Step 3: Cross multiply
    129,302.11x = 193,538.32 × 69,180.19
  4. Step 4: Simplify right side
    129,302.11x = 13,389,017,403.98
  5. Step 5: Solve for x
    x = 13,389,017,403.98/129,302.11
  6. Step 6: Final answer
    x = 103,548.33

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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.