Home / 235,434.79-324,906.56-128,012.19

Finding the Fourth Proportional to 235,434.79, 324,906.56 and 128,012.19

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Solution

The fourth proportional to 235,434.79, 324,906.56 and 128,012.19 is: 176,660.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,434.79 : 324,906.56 = 128,012.19 : x
  2. Step 2: Convert to fraction form
    235,434.79/324,906.56 = 128,012.19/x
  3. Step 3: Cross multiply
    235,434.79x = 324,906.56 × 128,012.19
  4. Step 4: Simplify right side
    235,434.79x = 41,592,000,290.97
  5. Step 5: Solve for x
    x = 41,592,000,290.97/235,434.79
  6. Step 6: Final answer
    x = 176,660.38

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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.