Home / 200,024.72-275,904.06-128,291.12

Finding the Fourth Proportional to 200,024.72, 275,904.06 and 128,291.12

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Solution

The fourth proportional to 200,024.72, 275,904.06 and 128,291.12 is: 176,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,024.72 : 275,904.06 = 128,291.12 : x
  2. Step 2: Convert to fraction form
    200,024.72/275,904.06 = 128,291.12/x
  3. Step 3: Cross multiply
    200,024.72x = 275,904.06 × 128,291.12
  4. Step 4: Simplify right side
    200,024.72x = 35,396,040,869.95
  5. Step 5: Solve for x
    x = 35,396,040,869.95/200,024.72
  6. Step 6: Final answer
    x = 176,958.33

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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.