Home / 125,972.45-173,835.42-78,224.78

Finding the Fourth Proportional to 125,972.45, 173,835.42 and 78,224.78

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Solution

The fourth proportional to 125,972.45, 173,835.42 and 78,224.78 is: 107,946.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,972.45 : 173,835.42 = 78,224.78 : x
  2. Step 2: Convert to fraction form
    125,972.45/173,835.42 = 78,224.78/x
  3. Step 3: Cross multiply
    125,972.45x = 173,835.42 × 78,224.78
  4. Step 4: Simplify right side
    125,972.45x = 13,598,236,616.53
  5. Step 5: Solve for x
    x = 13,598,236,616.53/125,972.45
  6. Step 6: Final answer
    x = 107,946.12

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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.