Home / 209,194.81-288,691.10-113,701.53

Finding the Fourth Proportional to 209,194.81, 288,691.10 and 113,701.53

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Solution

The fourth proportional to 209,194.81, 288,691.10 and 113,701.53 is: 156,909.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,194.81 : 288,691.10 = 113,701.53 : x
  2. Step 2: Convert to fraction form
    209,194.81/288,691.10 = 113,701.53/x
  3. Step 3: Cross multiply
    209,194.81x = 288,691.10 × 113,701.53
  4. Step 4: Simplify right side
    209,194.81x = 32,824,619,767.38
  5. Step 5: Solve for x
    x = 32,824,619,767.38/209,194.81
  6. Step 6: Final answer
    x = 156,909.34

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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.