Home / 111,661.20-154,091.76-60,673.68

Finding the Fourth Proportional to 111,661.20, 154,091.76 and 60,673.68

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Solution

The fourth proportional to 111,661.20, 154,091.76 and 60,673.68 is: 83,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,661.20 : 154,091.76 = 60,673.68 : x
  2. Step 2: Convert to fraction form
    111,661.20/154,091.76 = 60,673.68/x
  3. Step 3: Cross multiply
    111,661.20x = 154,091.76 × 60,673.68
  4. Step 4: Simplify right side
    111,661.20x = 9,349,314,136.88
  5. Step 5: Solve for x
    x = 9,349,314,136.88/111,661.20
  6. Step 6: Final answer
    x = 83,729.30

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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.