Home / 217,111.22-299,578.65-121,621.94

Finding the Fourth Proportional to 217,111.22, 299,578.65 and 121,621.94

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Solution

The fourth proportional to 217,111.22, 299,578.65 and 121,621.94 is: 167,818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,111.22 : 299,578.65 = 121,621.94 : x
  2. Step 2: Convert to fraction form
    217,111.22/299,578.65 = 121,621.94/x
  3. Step 3: Cross multiply
    217,111.22x = 299,578.65 × 121,621.94
  4. Step 4: Simplify right side
    217,111.22x = 36,435,336,595.58
  5. Step 5: Solve for x
    x = 36,435,336,595.58/217,111.22
  6. Step 6: Final answer
    x = 167,818.76

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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.