Home / 222,115.13-306,519.08-121,513.13

Finding the Fourth Proportional to 222,115.13, 306,519.08 and 121,513.13

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Solution

The fourth proportional to 222,115.13, 306,519.08 and 121,513.13 is: 167,688.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,115.13 : 306,519.08 = 121,513.13 : x
  2. Step 2: Convert to fraction form
    222,115.13/306,519.08 = 121,513.13/x
  3. Step 3: Cross multiply
    222,115.13x = 306,519.08 × 121,513.13
  4. Step 4: Simplify right side
    222,115.13x = 37,246,092,815.52
  5. Step 5: Solve for x
    x = 37,246,092,815.52/222,115.13
  6. Step 6: Final answer
    x = 167,688.23

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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.