Home / 122,514.12-169,087.77-74,795.13

Finding the Fourth Proportional to 122,514.12, 169,087.77 and 74,795.13

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Solution

The fourth proportional to 122,514.12, 169,087.77 and 74,795.13 is: 103,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,514.12 : 169,087.77 = 74,795.13 : x
  2. Step 2: Convert to fraction form
    122,514.12/169,087.77 = 74,795.13/x
  3. Step 3: Cross multiply
    122,514.12x = 169,087.77 × 74,795.13
  4. Step 4: Simplify right side
    122,514.12x = 12,646,941,738.56
  5. Step 5: Solve for x
    x = 12,646,941,738.56/122,514.12
  6. Step 6: Final answer
    x = 103,228.44

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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.