Home / 116,618.16-160,934.04-65,629.20

Finding the Fourth Proportional to 116,618.16, 160,934.04 and 65,629.20

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Solution

The fourth proportional to 116,618.16, 160,934.04 and 65,629.20 is: 90,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,618.16 : 160,934.04 = 65,629.20 : x
  2. Step 2: Convert to fraction form
    116,618.16/160,934.04 = 65,629.20/x
  3. Step 3: Cross multiply
    116,618.16x = 160,934.04 × 65,629.20
  4. Step 4: Simplify right side
    116,618.16x = 10,561,972,297.97
  5. Step 5: Solve for x
    x = 10,561,972,297.97/116,618.16
  6. Step 6: Final answer
    x = 90,568.85

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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.