Home / 129,701.34-179,015.67-81,924.30

Finding the Fourth Proportional to 129,701.34, 179,015.67 and 81,924.30

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Solution

The fourth proportional to 129,701.34, 179,015.67 and 81,924.30 is: 113,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,701.34 : 179,015.67 = 81,924.30 : x
  2. Step 2: Convert to fraction form
    129,701.34/179,015.67 = 81,924.30/x
  3. Step 3: Cross multiply
    129,701.34x = 179,015.67 × 81,924.30
  4. Step 4: Simplify right side
    129,701.34x = 14,665,733,453.78
  5. Step 5: Solve for x
    x = 14,665,733,453.78/129,701.34
  6. Step 6: Final answer
    x = 113,073.11

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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.