Home / 115,856.28-159,928.56-98,043.84

Finding the Fourth Proportional to 115,856.28, 159,928.56 and 98,043.84

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Solution

The fourth proportional to 115,856.28, 159,928.56 and 98,043.84 is: 135,340.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,856.28 : 159,928.56 = 98,043.84 : x
  2. Step 2: Convert to fraction form
    115,856.28/159,928.56 = 98,043.84/x
  3. Step 3: Cross multiply
    115,856.28x = 159,928.56 × 98,043.84
  4. Step 4: Simplify right side
    115,856.28x = 15,680,010,148.07
  5. Step 5: Solve for x
    x = 15,680,010,148.07/115,856.28
  6. Step 6: Final answer
    x = 135,340.18

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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.