Home / 125,020.94-172,494.78-71,286.36

Finding the Fourth Proportional to 125,020.94, 172,494.78 and 71,286.36

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Solution

The fourth proportional to 125,020.94, 172,494.78 and 71,286.36 is: 98,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,020.94 : 172,494.78 = 71,286.36 : x
  2. Step 2: Convert to fraction form
    125,020.94/172,494.78 = 71,286.36/x
  3. Step 3: Cross multiply
    125,020.94x = 172,494.78 × 71,286.36
  4. Step 4: Simplify right side
    125,020.94x = 12,296,524,985.20
  5. Step 5: Solve for x
    x = 12,296,524,985.20/125,020.94
  6. Step 6: Final answer
    x = 98,355.72

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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.