Home / 129,962.40-179,252.10-82,169.58

Finding the Fourth Proportional to 129,962.40, 179,252.10 and 82,169.58

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Solution

The fourth proportional to 129,962.40, 179,252.10 and 82,169.58 is: 113,333.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,962.40 : 179,252.10 = 82,169.58 : x
  2. Step 2: Convert to fraction form
    129,962.40/179,252.10 = 82,169.58/x
  3. Step 3: Cross multiply
    129,962.40x = 179,252.10 × 82,169.58
  4. Step 4: Simplify right side
    129,962.40x = 14,729,069,771.12
  5. Step 5: Solve for x
    x = 14,729,069,771.12/129,962.40
  6. Step 6: Final answer
    x = 113,333.32

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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.