Home / 212,443.74-318,862.71-107,336.52

Finding the Fourth Proportional to 212,443.74, 318,862.71 and 107,336.52

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Solution

The fourth proportional to 212,443.74, 318,862.71 and 107,336.52 is: 161,104.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,443.74 : 318,862.71 = 107,336.52 : x
  2. Step 2: Convert to fraction form
    212,443.74/318,862.71 = 107,336.52/x
  3. Step 3: Cross multiply
    212,443.74x = 318,862.71 × 107,336.52
  4. Step 4: Simplify right side
    212,443.74x = 34,225,613,649.17
  5. Step 5: Solve for x
    x = 34,225,613,649.17/212,443.74
  6. Step 6: Final answer
    x = 161,104.36

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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.