Home / 111,120.97-153,345.76-60,132.58

Finding the Fourth Proportional to 111,120.97, 153,345.76 and 60,132.58

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Solution

The fourth proportional to 111,120.97, 153,345.76 and 60,132.58 is: 82,982.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,120.97 : 153,345.76 = 60,132.58 : x
  2. Step 2: Convert to fraction form
    111,120.97/153,345.76 = 60,132.58/x
  3. Step 3: Cross multiply
    111,120.97x = 153,345.76 × 60,132.58
  4. Step 4: Simplify right side
    111,120.97x = 9,221,076,180.86
  5. Step 5: Solve for x
    x = 9,221,076,180.86/111,120.97
  6. Step 6: Final answer
    x = 82,982.32

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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.