Home / 212,296.43-292,844.66-135,787.61

Finding the Fourth Proportional to 212,296.43, 292,844.66 and 135,787.61

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Solution

The fourth proportional to 212,296.43, 292,844.66 and 135,787.61 is: 187,307.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,296.43 : 292,844.66 = 135,787.61 : x
  2. Step 2: Convert to fraction form
    212,296.43/292,844.66 = 135,787.61/x
  3. Step 3: Cross multiply
    212,296.43x = 292,844.66 × 135,787.61
  4. Step 4: Simplify right side
    212,296.43x = 39,764,674,339.50
  5. Step 5: Solve for x
    x = 39,764,674,339.50/212,296.43
  6. Step 6: Final answer
    x = 187,307.32

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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.