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Finding the Fourth Proportional to 113,166.80, 169,750.20 and 100,919.60

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Solution

The fourth proportional to 113,166.80, 169,750.20 and 100,919.60 is: 151,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,166.80 : 169,750.20 = 100,919.60 : x
  2. Step 2: Convert to fraction form
    113,166.80/169,750.20 = 100,919.60/x
  3. Step 3: Cross multiply
    113,166.80x = 169,750.20 × 100,919.60
  4. Step 4: Simplify right side
    113,166.80x = 17,131,122,283.92
  5. Step 5: Solve for x
    x = 17,131,122,283.92/113,166.80
  6. Step 6: Final answer
    x = 151,379.40

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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.