Home / 113,869.56-157,173.36-66,144.36

Finding the Fourth Proportional to 113,869.56, 157,173.36 and 66,144.36

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Solution

The fourth proportional to 113,869.56, 157,173.36 and 66,144.36 is: 91,298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,869.56 : 157,173.36 = 66,144.36 : x
  2. Step 2: Convert to fraction form
    113,869.56/157,173.36 = 66,144.36/x
  3. Step 3: Cross multiply
    113,869.56x = 157,173.36 × 66,144.36
  4. Step 4: Simplify right side
    113,869.56x = 10,396,131,306.25
  5. Step 5: Solve for x
    x = 10,396,131,306.25/113,869.56
  6. Step 6: Final answer
    x = 91,298.60

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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.