Home / 212,814.20-293,696.82-117,320.72

Finding the Fourth Proportional to 212,814.20, 293,696.82 and 117,320.72

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Solution

The fourth proportional to 212,814.20, 293,696.82 and 117,320.72 is: 161,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,814.20 : 293,696.82 = 117,320.72 : x
  2. Step 2: Convert to fraction form
    212,814.20/293,696.82 = 117,320.72/x
  3. Step 3: Cross multiply
    212,814.20x = 293,696.82 × 117,320.72
  4. Step 4: Simplify right side
    212,814.20x = 34,456,722,384.11
  5. Step 5: Solve for x
    x = 34,456,722,384.11/212,814.20
  6. Step 6: Final answer
    x = 161,909.88

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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.