Home / 149,022.08-205,640.16-88,589.60

Finding the Fourth Proportional to 149,022.08, 205,640.16 and 88,589.60

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Solution

The fourth proportional to 149,022.08, 205,640.16 and 88,589.60 is: 122,247.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,022.08 : 205,640.16 = 88,589.60 : x
  2. Step 2: Convert to fraction form
    149,022.08/205,640.16 = 88,589.60/x
  3. Step 3: Cross multiply
    149,022.08x = 205,640.16 × 88,589.60
  4. Step 4: Simplify right side
    149,022.08x = 18,217,579,518.34
  5. Step 5: Solve for x
    x = 18,217,579,518.34/149,022.08
  6. Step 6: Final answer
    x = 122,247.52

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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.