Home / 158,246.10-218,420.91-109,851.66

Finding the Fourth Proportional to 158,246.10, 218,420.91 and 109,851.66

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Solution

The fourth proportional to 158,246.10, 218,420.91 and 109,851.66 is: 151,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,246.10 : 218,420.91 = 109,851.66 : x
  2. Step 2: Convert to fraction form
    158,246.10/218,420.91 = 109,851.66/x
  3. Step 3: Cross multiply
    158,246.10x = 218,420.91 × 109,851.66
  4. Step 4: Simplify right side
    158,246.10x = 23,993,899,542.21
  5. Step 5: Solve for x
    x = 23,993,899,542.21/158,246.10
  6. Step 6: Final answer
    x = 151,623.95

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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.