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Finding the Fourth Proportional to 79,114.90, 118,672.35 and 75,615.70

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Solution

The fourth proportional to 79,114.90, 118,672.35 and 75,615.70 is: 113,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,114.90 : 118,672.35 = 75,615.70 : x
  2. Step 2: Convert to fraction form
    79,114.90/118,672.35 = 75,615.70/x
  3. Step 3: Cross multiply
    79,114.90x = 118,672.35 × 75,615.70
  4. Step 4: Simplify right side
    79,114.90x = 8,973,492,815.90
  5. Step 5: Solve for x
    x = 8,973,492,815.90/79,114.90
  6. Step 6: Final answer
    x = 113,423.55

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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.