Home / 149,452.32-206,240.06-81,470.60

Finding the Fourth Proportional to 149,452.32, 206,240.06 and 81,470.60

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Solution

The fourth proportional to 149,452.32, 206,240.06 and 81,470.60 is: 112,427.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,452.32 : 206,240.06 = 81,470.60 : x
  2. Step 2: Convert to fraction form
    149,452.32/206,240.06 = 81,470.60/x
  3. Step 3: Cross multiply
    149,452.32x = 206,240.06 × 81,470.60
  4. Step 4: Simplify right side
    149,452.32x = 16,802,501,432.24
  5. Step 5: Solve for x
    x = 16,802,501,432.24/149,452.32
  6. Step 6: Final answer
    x = 112,427.17

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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.