Home / 236,658.18-326,601.57-129,238.20

Finding the Fourth Proportional to 236,658.18, 326,601.57 and 129,238.20

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Solution

The fourth proportional to 236,658.18, 326,601.57 and 129,238.20 is: 178,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,658.18 : 326,601.57 = 129,238.20 : x
  2. Step 2: Convert to fraction form
    236,658.18/326,601.57 = 129,238.20/x
  3. Step 3: Cross multiply
    236,658.18x = 326,601.57 × 129,238.20
  4. Step 4: Simplify right side
    236,658.18x = 42,209,399,023.97
  5. Step 5: Solve for x
    x = 42,209,399,023.97/236,658.18
  6. Step 6: Final answer
    x = 178,355.97

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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.