Home / 149,008.38-205,632.63-81,025.26

Finding the Fourth Proportional to 149,008.38, 205,632.63 and 81,025.26

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Solution

The fourth proportional to 149,008.38, 205,632.63 and 81,025.26 is: 111,815.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,008.38 : 205,632.63 = 81,025.26 : x
  2. Step 2: Convert to fraction form
    149,008.38/205,632.63 = 81,025.26/x
  3. Step 3: Cross multiply
    149,008.38x = 205,632.63 × 81,025.26
  4. Step 4: Simplify right side
    149,008.38x = 16,661,437,310.23
  5. Step 5: Solve for x
    x = 16,661,437,310.23/149,008.38
  6. Step 6: Final answer
    x = 111,815.44

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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.