Home / 129,708.09-179,002.17-73,118.25

Finding the Fourth Proportional to 129,708.09, 179,002.17 and 73,118.25

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Solution

The fourth proportional to 129,708.09, 179,002.17 and 73,118.25 is: 100,906.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,708.09 : 179,002.17 = 73,118.25 : x
  2. Step 2: Convert to fraction form
    129,708.09/179,002.17 = 73,118.25/x
  3. Step 3: Cross multiply
    129,708.09x = 179,002.17 × 73,118.25
  4. Step 4: Simplify right side
    129,708.09x = 13,088,325,416.60
  5. Step 5: Solve for x
    x = 13,088,325,416.60/129,708.09
  6. Step 6: Final answer
    x = 100,906.01

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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.