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Finding the Fourth Proportional to 80,172.60, 120,300.40 and 58,167.60

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Solution

The fourth proportional to 80,172.60, 120,300.40 and 58,167.60 is: 87,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,172.60 : 120,300.40 = 58,167.60 : x
  2. Step 2: Convert to fraction form
    80,172.60/120,300.40 = 58,167.60/x
  3. Step 3: Cross multiply
    80,172.60x = 120,300.40 × 58,167.60
  4. Step 4: Simplify right side
    80,172.60x = 6,997,585,256.20
  5. Step 5: Solve for x
    x = 6,997,585,256.20/80,172.60
  6. Step 6: Final answer
    x = 87,281.51

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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.