Home / 139,286.79-209,013.18-50,547.21

Finding the Fourth Proportional to 139,286.79, 209,013.18 and 50,547.21

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Solution

The fourth proportional to 139,286.79, 209,013.18 and 50,547.21 is: 75,850.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,286.79 : 209,013.18 = 50,547.21 : x
  2. Step 2: Convert to fraction form
    139,286.79/209,013.18 = 50,547.21/x
  3. Step 3: Cross multiply
    139,286.79x = 209,013.18 × 50,547.21
  4. Step 4: Simplify right side
    139,286.79x = 10,565,033,102.23
  5. Step 5: Solve for x
    x = 10,565,033,102.23/139,286.79
  6. Step 6: Final answer
    x = 75,850.93

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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.