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Finding the Fourth Proportional to 175,027.60, 262,541.40 and 81,542.80

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Solution

The fourth proportional to 175,027.60, 262,541.40 and 81,542.80 is: 122,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,027.60 : 262,541.40 = 81,542.80 : x
  2. Step 2: Convert to fraction form
    175,027.60/262,541.40 = 81,542.80/x
  3. Step 3: Cross multiply
    175,027.60x = 262,541.40 × 81,542.80
  4. Step 4: Simplify right side
    175,027.60x = 21,408,360,871.92
  5. Step 5: Solve for x
    x = 21,408,360,871.92/175,027.60
  6. Step 6: Final answer
    x = 122,314.20

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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.