Home / 124,143.46-171,272.01-75,763.78

Finding the Fourth Proportional to 124,143.46, 171,272.01 and 75,763.78

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Solution

The fourth proportional to 124,143.46, 171,272.01 and 75,763.78 is: 104,525.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,143.46 : 171,272.01 = 75,763.78 : x
  2. Step 2: Convert to fraction form
    124,143.46/171,272.01 = 75,763.78/x
  3. Step 3: Cross multiply
    124,143.46x = 171,272.01 × 75,763.78
  4. Step 4: Simplify right side
    124,143.46x = 12,976,214,885.80
  5. Step 5: Solve for x
    x = 12,976,214,885.80/124,143.46
  6. Step 6: Final answer
    x = 104,525.96

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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.