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Finding the Fourth Proportional to 146,571.60, 219,857.40 and 75,712.80

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Solution

The fourth proportional to 146,571.60, 219,857.40 and 75,712.80 is: 113,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,571.60 : 219,857.40 = 75,712.80 : x
  2. Step 2: Convert to fraction form
    146,571.60/219,857.40 = 75,712.80/x
  3. Step 3: Cross multiply
    146,571.60x = 219,857.40 × 75,712.80
  4. Step 4: Simplify right side
    146,571.60x = 16,646,019,354.72
  5. Step 5: Solve for x
    x = 16,646,019,354.72/146,571.60
  6. Step 6: Final answer
    x = 113,569.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.