Home / 124,843.75-172,284.38-80,209.51

Finding the Fourth Proportional to 124,843.75, 172,284.38 and 80,209.51

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Solution

The fourth proportional to 124,843.75, 172,284.38 and 80,209.51 is: 110,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,843.75 : 172,284.38 = 80,209.51 : x
  2. Step 2: Convert to fraction form
    124,843.75/172,284.38 = 80,209.51/x
  3. Step 3: Cross multiply
    124,843.75x = 172,284.38 × 80,209.51
  4. Step 4: Simplify right side
    124,843.75x = 13,818,845,700.45
  5. Step 5: Solve for x
    x = 13,818,845,700.45/124,843.75
  6. Step 6: Final answer
    x = 110,689.13

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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.