Home / 149,815.29-206,743.72-81,832.24

Finding the Fourth Proportional to 149,815.29, 206,743.72 and 81,832.24

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Solution

The fourth proportional to 149,815.29, 206,743.72 and 81,832.24 is: 112,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,815.29 : 206,743.72 = 81,832.24 : x
  2. Step 2: Convert to fraction form
    149,815.29/206,743.72 = 81,832.24/x
  3. Step 3: Cross multiply
    149,815.29x = 206,743.72 × 81,832.24
  4. Step 4: Simplify right side
    149,815.29x = 16,918,301,713.53
  5. Step 5: Solve for x
    x = 16,918,301,713.53/149,815.29
  6. Step 6: Final answer
    x = 112,927.74

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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.