Home / 129,223.96-193,918.06-66,894.52

Finding the Fourth Proportional to 129,223.96, 193,918.06 and 66,894.52

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Solution

The fourth proportional to 129,223.96, 193,918.06 and 66,894.52 is: 100,384.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,223.96 : 193,918.06 = 66,894.52 : x
  2. Step 2: Convert to fraction form
    129,223.96/193,918.06 = 66,894.52/x
  3. Step 3: Cross multiply
    129,223.96x = 193,918.06 × 66,894.52
  4. Step 4: Simplify right side
    129,223.96x = 12,972,055,543.03
  5. Step 5: Solve for x
    x = 12,972,055,543.03/129,223.96
  6. Step 6: Final answer
    x = 100,384.29

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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.