Home / 209,003.14-288,426.45-113,511.70

Finding the Fourth Proportional to 209,003.14, 288,426.45 and 113,511.70

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Solution

The fourth proportional to 209,003.14, 288,426.45 and 113,511.70 is: 156,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,003.14 : 288,426.45 = 113,511.70 : x
  2. Step 2: Convert to fraction form
    209,003.14/288,426.45 = 113,511.70/x
  3. Step 3: Cross multiply
    209,003.14x = 288,426.45 × 113,511.70
  4. Step 4: Simplify right side
    209,003.14x = 32,739,776,664.47
  5. Step 5: Solve for x
    x = 32,739,776,664.47/209,003.14
  6. Step 6: Final answer
    x = 156,647.30

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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.