Home / 212,715.38-293,558.78-122,070.61

Finding the Fourth Proportional to 212,715.38, 293,558.78 and 122,070.61

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Solution

The fourth proportional to 212,715.38, 293,558.78 and 122,070.61 is: 168,464.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,715.38 : 293,558.78 = 122,070.61 : x
  2. Step 2: Convert to fraction form
    212,715.38/293,558.78 = 122,070.61/x
  3. Step 3: Cross multiply
    212,715.38x = 293,558.78 × 122,070.61
  4. Step 4: Simplify right side
    212,715.38x = 35,834,900,017.58
  5. Step 5: Solve for x
    x = 35,834,900,017.58/212,715.38
  6. Step 6: Final answer
    x = 168,464.07

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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.