Home / 138,995.19-208,492.79-33,813.25

Finding the Fourth Proportional to 138,995.19, 208,492.79 and 33,813.25

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Solution

The fourth proportional to 138,995.19, 208,492.79 and 33,813.25 is: 50,719.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,995.19 : 208,492.79 = 33,813.25 : x
  2. Step 2: Convert to fraction form
    138,995.19/208,492.79 = 33,813.25/x
  3. Step 3: Cross multiply
    138,995.19x = 208,492.79 × 33,813.25
  4. Step 4: Simplify right side
    138,995.19x = 7,049,818,662.40
  5. Step 5: Solve for x
    x = 7,049,818,662.40/138,995.19
  6. Step 6: Final answer
    x = 50,719.88

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.