Home / 209,175.90-288,661.15-113,683.28

Finding the Fourth Proportional to 209,175.90, 288,661.15 and 113,683.28

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Solution

The fourth proportional to 209,175.90, 288,661.15 and 113,683.28 is: 156,882.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,175.90 : 288,661.15 = 113,683.28 : x
  2. Step 2: Convert to fraction form
    209,175.90/288,661.15 = 113,683.28/x
  3. Step 3: Cross multiply
    209,175.90x = 288,661.15 × 113,683.28
  4. Step 4: Simplify right side
    209,175.90x = 32,815,945,039.37
  5. Step 5: Solve for x
    x = 32,815,945,039.37/209,175.90
  6. Step 6: Final answer
    x = 156,882.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.