Home / 209,002.01-288,424.46-113,509.39

Finding the Fourth Proportional to 209,002.01, 288,424.46 and 113,509.39

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Solution

The fourth proportional to 209,002.01, 288,424.46 and 113,509.39 is: 156,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,002.01 : 288,424.46 = 113,509.39 : x
  2. Step 2: Convert to fraction form
    209,002.01/288,424.46 = 113,509.39/x
  3. Step 3: Cross multiply
    209,002.01x = 288,424.46 × 113,509.39
  4. Step 4: Simplify right side
    209,002.01x = 32,738,884,515.68
  5. Step 5: Solve for x
    x = 32,738,884,515.68/209,002.01
  6. Step 6: Final answer
    x = 156,643.87

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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.