Home / 170,557.07-235,339.39-109,356.78

Finding the Fourth Proportional to 170,557.07, 235,339.39 and 109,356.78

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Solution

The fourth proportional to 170,557.07, 235,339.39 and 109,356.78 is: 150,893.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,557.07 : 235,339.39 = 109,356.78 : x
  2. Step 2: Convert to fraction form
    170,557.07/235,339.39 = 109,356.78/x
  3. Step 3: Cross multiply
    170,557.07x = 235,339.39 × 109,356.78
  4. Step 4: Simplify right side
    170,557.07x = 25,735,957,897.56
  5. Step 5: Solve for x
    x = 25,735,957,897.56/170,557.07
  6. Step 6: Final answer
    x = 150,893.53

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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.