Home / 129,427.98-178,575.73-75,726.19

Finding the Fourth Proportional to 129,427.98, 178,575.73 and 75,726.19

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Solution

The fourth proportional to 129,427.98, 178,575.73 and 75,726.19 is: 104,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,427.98 : 178,575.73 = 75,726.19 : x
  2. Step 2: Convert to fraction form
    129,427.98/178,575.73 = 75,726.19/x
  3. Step 3: Cross multiply
    129,427.98x = 178,575.73 × 75,726.19
  4. Step 4: Simplify right side
    129,427.98x = 13,522,859,659.37
  5. Step 5: Solve for x
    x = 13,522,859,659.37/129,427.98
  6. Step 6: Final answer
    x = 104,481.73

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1.5x scale

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.