Home / 217,387.23-299,994.10-120,605.77

Finding the Fourth Proportional to 217,387.23, 299,994.10 and 120,605.77

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Solution

The fourth proportional to 217,387.23, 299,994.10 and 120,605.77 is: 166,435.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,387.23 : 299,994.10 = 120,605.77 : x
  2. Step 2: Convert to fraction form
    217,387.23/299,994.10 = 120,605.77/x
  3. Step 3: Cross multiply
    217,387.23x = 299,994.10 × 120,605.77
  4. Step 4: Simplify right side
    217,387.23x = 36,181,019,425.96
  5. Step 5: Solve for x
    x = 36,181,019,425.96/217,387.23
  6. Step 6: Final answer
    x = 166,435.81

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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.