Home / 111,220.82-153,475.04-65,891.18

Finding the Fourth Proportional to 111,220.82, 153,475.04 and 65,891.18

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Solution

The fourth proportional to 111,220.82, 153,475.04 and 65,891.18 is: 90,924.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,220.82 : 153,475.04 = 65,891.18 : x
  2. Step 2: Convert to fraction form
    111,220.82/153,475.04 = 65,891.18/x
  3. Step 3: Cross multiply
    111,220.82x = 153,475.04 × 65,891.18
  4. Step 4: Simplify right side
    111,220.82x = 10,112,651,486.15
  5. Step 5: Solve for x
    x = 10,112,651,486.15/111,220.82
  6. Step 6: Final answer
    x = 90,924.09

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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.