Home / 217,528.18-326,229.14-91,165.12

Finding the Fourth Proportional to 217,528.18, 326,229.14 and 91,165.12

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Solution

The fourth proportional to 217,528.18, 326,229.14 and 91,165.12 is: 136,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,528.18 : 326,229.14 = 91,165.12 : x
  2. Step 2: Convert to fraction form
    217,528.18/326,229.14 = 91,165.12/x
  3. Step 3: Cross multiply
    217,528.18x = 326,229.14 × 91,165.12
  4. Step 4: Simplify right side
    217,528.18x = 29,740,718,695.60
  5. Step 5: Solve for x
    x = 29,740,718,695.60/217,528.18
  6. Step 6: Final answer
    x = 136,721.22

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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.