Home / 217,620.20-326,430.30-124,135.40

Finding the Fourth Proportional to 217,620.20, 326,430.30 and 124,135.40

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Solution

The fourth proportional to 217,620.20, 326,430.30 and 124,135.40 is: 186,203.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,620.20 : 326,430.30 = 124,135.40 : x
  2. Step 2: Convert to fraction form
    217,620.20/326,430.30 = 124,135.40/x
  3. Step 3: Cross multiply
    217,620.20x = 326,430.30 × 124,135.40
  4. Step 4: Simplify right side
    217,620.20x = 40,521,555,862.62
  5. Step 5: Solve for x
    x = 40,521,555,862.62/217,620.20
  6. Step 6: Final answer
    x = 186,203.10

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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.