Home / 209,187.56-288,681.09-113,694.28

Finding the Fourth Proportional to 209,187.56, 288,681.09 and 113,694.28

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Solution

The fourth proportional to 209,187.56, 288,681.09 and 113,694.28 is: 156,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,187.56 : 288,681.09 = 113,694.28 : x
  2. Step 2: Convert to fraction form
    209,187.56/288,681.09 = 113,694.28/x
  3. Step 3: Cross multiply
    209,187.56x = 288,681.09 × 113,694.28
  4. Step 4: Simplify right side
    209,187.56x = 32,821,388,677.17
  5. Step 5: Solve for x
    x = 32,821,388,677.17/209,187.56
  6. Step 6: Final answer
    x = 156,899.33

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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.