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Finding the Fourth Proportional to 131,301.60, 196,894.80 and 52,389.60

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Solution

The fourth proportional to 131,301.60, 196,894.80 and 52,389.60 is: 78,561.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,301.60 : 196,894.80 = 52,389.60 : x
  2. Step 2: Convert to fraction form
    131,301.60/196,894.80 = 52,389.60/x
  3. Step 3: Cross multiply
    131,301.60x = 196,894.80 × 52,389.60
  4. Step 4: Simplify right side
    131,301.60x = 10,315,239,814.08
  5. Step 5: Solve for x
    x = 10,315,239,814.08/131,301.60
  6. Step 6: Final answer
    x = 78,561.42

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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.