Home / 217,091.40-299,577.45-121,593.21

Finding the Fourth Proportional to 217,091.40, 299,577.45 and 121,593.21

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Solution

The fourth proportional to 217,091.40, 299,577.45 and 121,593.21 is: 167,793.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,091.40 : 299,577.45 = 121,593.21 : x
  2. Step 2: Convert to fraction form
    217,091.40/299,577.45 = 121,593.21/x
  3. Step 3: Cross multiply
    217,091.40x = 299,577.45 × 121,593.21
  4. Step 4: Simplify right side
    217,091.40x = 36,426,583,789.11
  5. Step 5: Solve for x
    x = 36,426,583,789.11/217,091.40
  6. Step 6: Final answer
    x = 167,793.77

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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.