Home / 129,968.15-179,335.82-73,378.31

Finding the Fourth Proportional to 129,968.15, 179,335.82 and 73,378.31

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Solution

The fourth proportional to 129,968.15, 179,335.82 and 73,378.31 is: 101,250.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,968.15 : 179,335.82 = 73,378.31 : x
  2. Step 2: Convert to fraction form
    129,968.15/179,335.82 = 73,378.31/x
  3. Step 3: Cross multiply
    129,968.15x = 179,335.82 × 73,378.31
  4. Step 4: Simplify right side
    129,968.15x = 13,159,358,680.83
  5. Step 5: Solve for x
    x = 13,159,358,680.83/129,968.15
  6. Step 6: Final answer
    x = 101,250.65

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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.