Home / 111,119.26-153,343.40-60,130.86

Finding the Fourth Proportional to 111,119.26, 153,343.40 and 60,130.86

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Solution

The fourth proportional to 111,119.26, 153,343.40 and 60,130.86 is: 82,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,119.26 : 153,343.40 = 60,130.86 : x
  2. Step 2: Convert to fraction form
    111,119.26/153,343.40 = 60,130.86/x
  3. Step 3: Cross multiply
    111,119.26x = 153,343.40 × 60,130.86
  4. Step 4: Simplify right side
    111,119.26x = 9,220,670,517.32
  5. Step 5: Solve for x
    x = 9,220,670,517.32/111,119.26
  6. Step 6: Final answer
    x = 82,979.95

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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.