Home / 111,057.40-153,257.26-68,030.20

Finding the Fourth Proportional to 111,057.40, 153,257.26 and 68,030.20

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Solution

The fourth proportional to 111,057.40, 153,257.26 and 68,030.20 is: 93,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,057.40 : 153,257.26 = 68,030.20 : x
  2. Step 2: Convert to fraction form
    111,057.40/153,257.26 = 68,030.20/x
  3. Step 3: Cross multiply
    111,057.40x = 153,257.26 × 68,030.20
  4. Step 4: Simplify right side
    111,057.40x = 10,426,122,049.25
  5. Step 5: Solve for x
    x = 10,426,122,049.25/111,057.40
  6. Step 6: Final answer
    x = 93,880.48

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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.