Home / 165,142.20-227,887.74-89,690.52

Finding the Fourth Proportional to 165,142.20, 227,887.74 and 89,690.52

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Solution

The fourth proportional to 165,142.20, 227,887.74 and 89,690.52 is: 123,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,142.20 : 227,887.74 = 89,690.52 : x
  2. Step 2: Convert to fraction form
    165,142.20/227,887.74 = 89,690.52/x
  3. Step 3: Cross multiply
    165,142.20x = 227,887.74 × 89,690.52
  4. Step 4: Simplify right side
    165,142.20x = 20,439,369,902.22
  5. Step 5: Solve for x
    x = 20,439,369,902.22/165,142.20
  6. Step 6: Final answer
    x = 123,768.30

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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.