Home / 138,863.06-208,294.60-39,019.22

Finding the Fourth Proportional to 138,863.06, 208,294.60 and 39,019.22

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Solution

The fourth proportional to 138,863.06, 208,294.60 and 39,019.22 is: 58,528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,863.06 : 208,294.60 = 39,019.22 : x
  2. Step 2: Convert to fraction form
    138,863.06/208,294.60 = 39,019.22/x
  3. Step 3: Cross multiply
    138,863.06x = 208,294.60 × 39,019.22
  4. Step 4: Simplify right side
    138,863.06x = 8,127,492,822.21
  5. Step 5: Solve for x
    x = 8,127,492,822.21/138,863.06
  6. Step 6: Final answer
    x = 58,528.83

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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.