Home / 139,123.26-208,697.40-39,284.46

Finding the Fourth Proportional to 139,123.26, 208,697.40 and 39,284.46

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Solution

The fourth proportional to 139,123.26, 208,697.40 and 39,284.46 is: 58,930.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,123.26 : 208,697.40 = 39,284.46 : x
  2. Step 2: Convert to fraction form
    139,123.26/208,697.40 = 39,284.46/x
  3. Step 3: Cross multiply
    139,123.26x = 208,697.40 × 39,284.46
  4. Step 4: Simplify right side
    139,123.26x = 8,198,564,662.40
  5. Step 5: Solve for x
    x = 8,198,564,662.40/139,123.26
  6. Step 6: Final answer
    x = 58,930.22

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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.