Home / 139,991.04-209,867.63-65,154.65

Finding the Fourth Proportional to 139,991.04, 209,867.63 and 65,154.65

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Solution

The fourth proportional to 139,991.04, 209,867.63 and 65,154.65 is: 97,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,991.04 : 209,867.63 = 65,154.65 : x
  2. Step 2: Convert to fraction form
    139,991.04/209,867.63 = 65,154.65/x
  3. Step 3: Cross multiply
    139,991.04x = 209,867.63 × 65,154.65
  4. Step 4: Simplify right side
    139,991.04x = 13,673,850,603.87
  5. Step 5: Solve for x
    x = 13,673,850,603.87/139,991.04
  6. Step 6: Final answer
    x = 97,676.61

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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.