Home / 125,104.06-172,643.67-68,515.42

Finding the Fourth Proportional to 125,104.06, 172,643.67 and 68,515.42

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Solution

The fourth proportional to 125,104.06, 172,643.67 and 68,515.42 is: 94,551.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,104.06 : 172,643.67 = 68,515.42 : x
  2. Step 2: Convert to fraction form
    125,104.06/172,643.67 = 68,515.42/x
  3. Step 3: Cross multiply
    125,104.06x = 172,643.67 × 68,515.42
  4. Step 4: Simplify right side
    125,104.06x = 11,828,753,560.39
  5. Step 5: Solve for x
    x = 11,828,753,560.39/125,104.06
  6. Step 6: Final answer
    x = 94,551.32

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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.