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Finding the Fourth Proportional to 170,845.60, 256,341.30 and 82,053.40

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Solution

The fourth proportional to 170,845.60, 256,341.30 and 82,053.40 is: 123,115.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,845.60 : 256,341.30 = 82,053.40 : x
  2. Step 2: Convert to fraction form
    170,845.60/256,341.30 = 82,053.40/x
  3. Step 3: Cross multiply
    170,845.60x = 256,341.30 × 82,053.40
  4. Step 4: Simplify right side
    170,845.60x = 21,033,675,225.42
  5. Step 5: Solve for x
    x = 21,033,675,225.42/170,845.60
  6. Step 6: Final answer
    x = 123,115.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.