Home / 125,971.20-173,833.70-78,223.52

Finding the Fourth Proportional to 125,971.20, 173,833.70 and 78,223.52

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Solution

The fourth proportional to 125,971.20, 173,833.70 and 78,223.52 is: 107,944.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,971.20 : 173,833.70 = 78,223.52 : x
  2. Step 2: Convert to fraction form
    125,971.20/173,833.70 = 78,223.52/x
  3. Step 3: Cross multiply
    125,971.20x = 173,833.70 × 78,223.52
  4. Step 4: Simplify right side
    125,971.20x = 13,597,883,952.09
  5. Step 5: Solve for x
    x = 13,597,883,952.09/125,971.20
  6. Step 6: Final answer
    x = 107,944.39

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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.