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Finding the Fourth Proportional to 119,961.60, 165,657.60 and 80,332.80

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Solution

The fourth proportional to 119,961.60, 165,657.60 and 80,332.80 is: 110,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,961.60 : 165,657.60 = 80,332.80 : x
  2. Step 2: Convert to fraction form
    119,961.60/165,657.60 = 80,332.80/x
  3. Step 3: Cross multiply
    119,961.60x = 165,657.60 × 80,332.80
  4. Step 4: Simplify right side
    119,961.60x = 13,307,738,849.28
  5. Step 5: Solve for x
    x = 13,307,738,849.28/119,961.60
  6. Step 6: Final answer
    x = 110,933.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.