Home / 139,119.26-208,691.40-39,280.46

Finding the Fourth Proportional to 139,119.26, 208,691.40 and 39,280.46

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Solution

The fourth proportional to 139,119.26, 208,691.40 and 39,280.46 is: 58,924.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,119.26 : 208,691.40 = 39,280.46 : x
  2. Step 2: Convert to fraction form
    139,119.26/208,691.40 = 39,280.46/x
  3. Step 3: Cross multiply
    139,119.26x = 208,691.40 × 39,280.46
  4. Step 4: Simplify right side
    139,119.26x = 8,197,494,190.04
  5. Step 5: Solve for x
    x = 8,197,494,190.04/139,119.26
  6. Step 6: Final answer
    x = 58,924.22

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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.