Home / 138,942.66-208,431.63-44,139.03

Finding the Fourth Proportional to 138,942.66, 208,431.63 and 44,139.03

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Solution

The fourth proportional to 138,942.66, 208,431.63 and 44,139.03 is: 66,214.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,942.66 : 208,431.63 = 44,139.03 : x
  2. Step 2: Convert to fraction form
    138,942.66/208,431.63 = 44,139.03/x
  3. Step 3: Cross multiply
    138,942.66x = 208,431.63 × 44,139.03
  4. Step 4: Simplify right side
    138,942.66x = 9,199,969,969.52
  5. Step 5: Solve for x
    x = 9,199,969,969.52/138,942.66
  6. Step 6: Final answer
    x = 66,214.15

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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.