Home / 129,844.93-179,189.03-81,448.92

Finding the Fourth Proportional to 129,844.93, 179,189.03 and 81,448.92

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Solution

The fourth proportional to 129,844.93, 179,189.03 and 81,448.92 is: 112,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,844.93 : 179,189.03 = 81,448.92 : x
  2. Step 2: Convert to fraction form
    129,844.93/179,189.03 = 81,448.92/x
  3. Step 3: Cross multiply
    129,844.93x = 179,189.03 × 81,448.92
  4. Step 4: Simplify right side
    129,844.93x = 14,594,752,969.35
  5. Step 5: Solve for x
    x = 14,594,752,969.35/129,844.93
  6. Step 6: Final answer
    x = 112,401.41

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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.