Home / 125,103.06-172,642.29-68,514.42

Finding the Fourth Proportional to 125,103.06, 172,642.29 and 68,514.42

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Solution

The fourth proportional to 125,103.06, 172,642.29 and 68,514.42 is: 94,549.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,103.06 : 172,642.29 = 68,514.42 : x
  2. Step 2: Convert to fraction form
    125,103.06/172,642.29 = 68,514.42/x
  3. Step 3: Cross multiply
    125,103.06x = 172,642.29 × 68,514.42
  4. Step 4: Simplify right side
    125,103.06x = 11,828,486,366.82
  5. Step 5: Solve for x
    x = 11,828,486,366.82/125,103.06
  6. Step 6: Final answer
    x = 94,549.94

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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.