Home / 209,108.82-288,574.47-113,621.70

Finding the Fourth Proportional to 209,108.82, 288,574.47 and 113,621.70

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Solution

The fourth proportional to 209,108.82, 288,574.47 and 113,621.70 is: 156,800.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,108.82 : 288,574.47 = 113,621.70 : x
  2. Step 2: Convert to fraction form
    209,108.82/288,574.47 = 113,621.70/x
  3. Step 3: Cross multiply
    209,108.82x = 288,574.47 × 113,621.70
  4. Step 4: Simplify right side
    209,108.82x = 32,788,321,858.00
  5. Step 5: Solve for x
    x = 32,788,321,858.00/209,108.82
  6. Step 6: Final answer
    x = 156,800.28

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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.