Home / 217,705.32-326,658.36-99,412.92

Finding the Fourth Proportional to 217,705.32, 326,658.36 and 99,412.92

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Solution

The fourth proportional to 217,705.32, 326,658.36 and 99,412.92 is: 149,165.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,705.32 : 326,658.36 = 99,412.92 : x
  2. Step 2: Convert to fraction form
    217,705.32/326,658.36 = 99,412.92/x
  3. Step 3: Cross multiply
    217,705.32x = 326,658.36 × 99,412.92
  4. Step 4: Simplify right side
    217,705.32x = 32,474,061,410.01
  5. Step 5: Solve for x
    x = 32,474,061,410.01/217,705.32
  6. Step 6: Final answer
    x = 149,165.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.