Home / 129,835.34-195,095.49-69,908.12

Finding the Fourth Proportional to 129,835.34, 195,095.49 and 69,908.12

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Solution

The fourth proportional to 129,835.34, 195,095.49 and 69,908.12 is: 105,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,835.34 : 195,095.49 = 69,908.12 : x
  2. Step 2: Convert to fraction form
    129,835.34/195,095.49 = 69,908.12/x
  3. Step 3: Cross multiply
    129,835.34x = 195,095.49 × 69,908.12
  4. Step 4: Simplify right side
    129,835.34x = 13,638,757,950.90
  5. Step 5: Solve for x
    x = 13,638,757,950.90/129,835.34
  6. Step 6: Final answer
    x = 105,046.58

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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.