Home / 209,741.31-289,445.54-114,248.79

Finding the Fourth Proportional to 209,741.31, 289,445.54 and 114,248.79

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Solution

The fourth proportional to 209,741.31, 289,445.54 and 114,248.79 is: 157,664.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,741.31 : 289,445.54 = 114,248.79 : x
  2. Step 2: Convert to fraction form
    209,741.31/289,445.54 = 114,248.79/x
  3. Step 3: Cross multiply
    209,741.31x = 289,445.54 × 114,248.79
  4. Step 4: Simplify right side
    209,741.31x = 33,068,802,144.65
  5. Step 5: Solve for x
    x = 33,068,802,144.65/209,741.31
  6. Step 6: Final answer
    x = 157,664.71

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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.