Home / 217,084.08-299,587.32-121,585.20

Finding the Fourth Proportional to 217,084.08, 299,587.32 and 121,585.20

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Solution

The fourth proportional to 217,084.08, 299,587.32 and 121,585.20 is: 167,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,084.08 : 299,587.32 = 121,585.20 : x
  2. Step 2: Convert to fraction form
    217,084.08/299,587.32 = 121,585.20/x
  3. Step 3: Cross multiply
    217,084.08x = 299,587.32 × 121,585.20
  4. Step 4: Simplify right side
    217,084.08x = 36,425,384,219.66
  5. Step 5: Solve for x
    x = 36,425,384,219.66/217,084.08
  6. Step 6: Final answer
    x = 167,793.90

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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.