Home / 106,009.20-158,120.73-98,660.88

Finding the Fourth Proportional to 106,009.20, 158,120.73 and 98,660.88

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Solution

The fourth proportional to 106,009.20, 158,120.73 and 98,660.88 is: 147,160.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,009.20 : 158,120.73 = 98,660.88 : x
  2. Step 2: Convert to fraction form
    106,009.20/158,120.73 = 98,660.88/x
  3. Step 3: Cross multiply
    106,009.20x = 158,120.73 × 98,660.88
  4. Step 4: Simplify right side
    106,009.20x = 15,600,330,368.04
  5. Step 5: Solve for x
    x = 15,600,330,368.04/106,009.20
  6. Step 6: Final answer
    x = 147,160.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.