Home / 209,610.47-289,268.51-114,118.79

Finding the Fourth Proportional to 209,610.47, 289,268.51 and 114,118.79

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Solution

The fourth proportional to 209,610.47, 289,268.51 and 114,118.79 is: 157,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,610.47 : 289,268.51 = 114,118.79 : x
  2. Step 2: Convert to fraction form
    209,610.47/289,268.51 = 114,118.79/x
  3. Step 3: Cross multiply
    209,610.47x = 289,268.51 × 114,118.79
  4. Step 4: Simplify right side
    209,610.47x = 33,010,971,775.71
  5. Step 5: Solve for x
    x = 33,010,971,775.71/209,610.47
  6. Step 6: Final answer
    x = 157,487.23

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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.