Home / 129,774.40-179,081.82-73,182.12

Finding the Fourth Proportional to 129,774.40, 179,081.82 and 73,182.12

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Solution

The fourth proportional to 129,774.40, 179,081.82 and 73,182.12 is: 100,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,774.40 : 179,081.82 = 73,182.12 : x
  2. Step 2: Convert to fraction form
    129,774.40/179,081.82 = 73,182.12/x
  3. Step 3: Cross multiply
    129,774.40x = 179,081.82 × 73,182.12
  4. Step 4: Simplify right side
    129,774.40x = 13,105,587,241.06
  5. Step 5: Solve for x
    x = 13,105,587,241.06/129,774.40
  6. Step 6: Final answer
    x = 100,987.46

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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.