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Finding the Fourth Proportional to 212,167.89, 292,929.90 and 131,713.62

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Solution

The fourth proportional to 212,167.89, 292,929.90 and 131,713.62 is: 181,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,167.89 : 292,929.90 = 131,713.62 : x
  2. Step 2: Convert to fraction form
    212,167.89/292,929.90 = 131,713.62/x
  3. Step 3: Cross multiply
    212,167.89x = 292,929.90 × 131,713.62
  4. Step 4: Simplify right side
    212,167.89x = 38,582,857,535.24
  5. Step 5: Solve for x
    x = 38,582,857,535.24/212,167.89
  6. Step 6: Final answer
    x = 181,850.60

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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.