Home / 209,464.79-289,062.07-113,971.56

Finding the Fourth Proportional to 209,464.79, 289,062.07 and 113,971.56

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Solution

The fourth proportional to 209,464.79, 289,062.07 and 113,971.56 is: 157,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,464.79 : 289,062.07 = 113,971.56 : x
  2. Step 2: Convert to fraction form
    209,464.79/289,062.07 = 113,971.56/x
  3. Step 3: Cross multiply
    209,464.79x = 289,062.07 × 113,971.56
  4. Step 4: Simplify right side
    209,464.79x = 32,944,853,685.82
  5. Step 5: Solve for x
    x = 32,944,853,685.82/209,464.79
  6. Step 6: Final answer
    x = 157,281.11

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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.