Home / 139,568.08-209,352.90-34,386.28

Finding the Fourth Proportional to 139,568.08, 209,352.90 and 34,386.28

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Solution

The fourth proportional to 139,568.08, 209,352.90 and 34,386.28 is: 51,579.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,568.08 : 209,352.90 = 34,386.28 : x
  2. Step 2: Convert to fraction form
    139,568.08/209,352.90 = 34,386.28/x
  3. Step 3: Cross multiply
    139,568.08x = 209,352.90 × 34,386.28
  4. Step 4: Simplify right side
    139,568.08x = 7,198,867,438.21
  5. Step 5: Solve for x
    x = 7,198,867,438.21/139,568.08
  6. Step 6: Final answer
    x = 51,579.61

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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.