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Finding the Fourth Proportional to 141,805.70, 212,708.55 and 115,233.65

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Solution

The fourth proportional to 141,805.70, 212,708.55 and 115,233.65 is: 172,850.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,805.70 : 212,708.55 = 115,233.65 : x
  2. Step 2: Convert to fraction form
    141,805.70/212,708.55 = 115,233.65/x
  3. Step 3: Cross multiply
    141,805.70x = 212,708.55 × 115,233.65
  4. Step 4: Simplify right side
    141,805.70x = 24,511,182,602.71
  5. Step 5: Solve for x
    x = 24,511,182,602.71/141,805.70
  6. Step 6: Final answer
    x = 172,850.48

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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.