Home / 129,982.18-179,375.86-70,366.18

Finding the Fourth Proportional to 129,982.18, 179,375.86 and 70,366.18

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Solution

The fourth proportional to 129,982.18, 179,375.86 and 70,366.18 is: 97,105.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,982.18 : 179,375.86 = 70,366.18 : x
  2. Step 2: Convert to fraction form
    129,982.18/179,375.86 = 70,366.18/x
  3. Step 3: Cross multiply
    129,982.18x = 179,375.86 × 70,366.18
  4. Step 4: Simplify right side
    129,982.18x = 12,621,994,052.41
  5. Step 5: Solve for x
    x = 12,621,994,052.41/129,982.18
  6. Step 6: Final answer
    x = 97,105.57

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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.