Home / 217,637.08-326,344.48-127,855.15

Finding the Fourth Proportional to 217,637.08, 326,344.48 and 127,855.15

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Solution

The fourth proportional to 217,637.08, 326,344.48 and 127,855.15 is: 191,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,637.08 : 326,344.48 = 127,855.15 : x
  2. Step 2: Convert to fraction form
    217,637.08/326,344.48 = 127,855.15/x
  3. Step 3: Cross multiply
    217,637.08x = 326,344.48 × 127,855.15
  4. Step 4: Simplify right side
    217,637.08x = 41,724,822,442.07
  5. Step 5: Solve for x
    x = 41,724,822,442.07/217,637.08
  6. Step 6: Final answer
    x = 191,717.43

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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.