Home / 209,277.17-288,814.30-113,781.81

Finding the Fourth Proportional to 209,277.17, 288,814.30 and 113,781.81

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Solution

The fourth proportional to 209,277.17, 288,814.30 and 113,781.81 is: 157,025.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,277.17 : 288,814.30 = 113,781.81 : x
  2. Step 2: Convert to fraction form
    209,277.17/288,814.30 = 113,781.81/x
  3. Step 3: Cross multiply
    209,277.17x = 288,814.30 × 113,781.81
  4. Step 4: Simplify right side
    209,277.17x = 32,861,813,807.88
  5. Step 5: Solve for x
    x = 32,861,813,807.88/209,277.17
  6. Step 6: Final answer
    x = 157,025.32

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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.