Home / 111,655.20-154,084.75-60,668.06

Finding the Fourth Proportional to 111,655.20, 154,084.75 and 60,668.06

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Solution

The fourth proportional to 111,655.20, 154,084.75 and 60,668.06 is: 83,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,655.20 : 154,084.75 = 60,668.06 : x
  2. Step 2: Convert to fraction form
    111,655.20/154,084.75 = 60,668.06/x
  3. Step 3: Cross multiply
    111,655.20x = 154,084.75 × 60,668.06
  4. Step 4: Simplify right side
    111,655.20x = 9,348,022,554.74
  5. Step 5: Solve for x
    x = 9,348,022,554.74/111,655.20
  6. Step 6: Final answer
    x = 83,722.23

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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.