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Finding the Fourth Proportional to 117,225.20, 175,999.80 and 75,364.40

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Solution

The fourth proportional to 117,225.20, 175,999.80 and 75,364.40 is: 113,150.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,225.20 : 175,999.80 = 75,364.40 : x
  2. Step 2: Convert to fraction form
    117,225.20/175,999.80 = 75,364.40/x
  3. Step 3: Cross multiply
    117,225.20x = 175,999.80 × 75,364.40
  4. Step 4: Simplify right side
    117,225.20x = 13,264,119,327.12
  5. Step 5: Solve for x
    x = 13,264,119,327.12/117,225.20
  6. Step 6: Final answer
    x = 113,150.75

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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.