Home / 139,005.19-208,269.71-75,869.59

Finding the Fourth Proportional to 139,005.19, 208,269.71 and 75,869.59

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Solution

The fourth proportional to 139,005.19, 208,269.71 and 75,869.59 is: 113,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,005.19 : 208,269.71 = 75,869.59 : x
  2. Step 2: Convert to fraction form
    139,005.19/208,269.71 = 75,869.59/x
  3. Step 3: Cross multiply
    139,005.19x = 208,269.71 × 75,869.59
  4. Step 4: Simplify right side
    139,005.19x = 15,801,336,482.97
  5. Step 5: Solve for x
    x = 15,801,336,482.97/139,005.19
  6. Step 6: Final answer
    x = 113,674.44

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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.