Home / 111,078.67-153,287.85-60,091.20

Finding the Fourth Proportional to 111,078.67, 153,287.85 and 60,091.20

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Solution

The fourth proportional to 111,078.67, 153,287.85 and 60,091.20 is: 82,925.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,078.67 : 153,287.85 = 60,091.20 : x
  2. Step 2: Convert to fraction form
    111,078.67/153,287.85 = 60,091.20/x
  3. Step 3: Cross multiply
    111,078.67x = 153,287.85 × 60,091.20
  4. Step 4: Simplify right side
    111,078.67x = 9,211,250,851.92
  5. Step 5: Solve for x
    x = 9,211,250,851.92/111,078.67
  6. Step 6: Final answer
    x = 82,925.47

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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.