Home / 170,989.92-235,994.79-115,774.20

Finding the Fourth Proportional to 170,989.92, 235,994.79 and 115,774.20

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Solution

The fourth proportional to 170,989.92, 235,994.79 and 115,774.20 is: 159,787.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,989.92 : 235,994.79 = 115,774.20 : x
  2. Step 2: Convert to fraction form
    170,989.92/235,994.79 = 115,774.20/x
  3. Step 3: Cross multiply
    170,989.92x = 235,994.79 × 115,774.20
  4. Step 4: Simplify right side
    170,989.92x = 27,322,108,016.42
  5. Step 5: Solve for x
    x = 27,322,108,016.42/170,989.92
  6. Step 6: Final answer
    x = 159,787.83

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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.