Home / 209,186.31-288,675.38-113,693.59

Finding the Fourth Proportional to 209,186.31, 288,675.38 and 113,693.59

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Solution

The fourth proportional to 209,186.31, 288,675.38 and 113,693.59 is: 156,896.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,186.31 : 288,675.38 = 113,693.59 : x
  2. Step 2: Convert to fraction form
    209,186.31/288,675.38 = 113,693.59/x
  3. Step 3: Cross multiply
    209,186.31x = 288,675.38 × 113,693.59
  4. Step 4: Simplify right side
    209,186.31x = 32,820,540,296.81
  5. Step 5: Solve for x
    x = 32,820,540,296.81/209,186.31
  6. Step 6: Final answer
    x = 156,896.22

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1.5x scale

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.