Home / 125,022.21-172,523.97-68,422.65

Finding the Fourth Proportional to 125,022.21, 172,523.97 and 68,422.65

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Solution

The fourth proportional to 125,022.21, 172,523.97 and 68,422.65 is: 94,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,022.21 : 172,523.97 = 68,422.65 : x
  2. Step 2: Convert to fraction form
    125,022.21/172,523.97 = 68,422.65/x
  3. Step 3: Cross multiply
    125,022.21x = 172,523.97 × 68,422.65
  4. Step 4: Simplify right side
    125,022.21x = 11,804,547,215.92
  5. Step 5: Solve for x
    x = 11,804,547,215.92/125,022.21
  6. Step 6: Final answer
    x = 94,419.60

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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.