Home / 125,105.72-172,648.77-71,395.73

Finding the Fourth Proportional to 125,105.72, 172,648.77 and 71,395.73

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Solution

The fourth proportional to 125,105.72, 172,648.77 and 71,395.73 is: 98,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,105.72 : 172,648.77 = 71,395.73 : x
  2. Step 2: Convert to fraction form
    125,105.72/172,648.77 = 71,395.73/x
  3. Step 3: Cross multiply
    125,105.72x = 172,648.77 × 71,395.73
  4. Step 4: Simplify right side
    125,105.72x = 12,326,384,484.21
  5. Step 5: Solve for x
    x = 12,326,384,484.21/125,105.72
  6. Step 6: Final answer
    x = 98,527.75

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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.