Home / 113,871.56-157,176.12-66,146.36

Finding the Fourth Proportional to 113,871.56, 157,176.12 and 66,146.36

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Solution

The fourth proportional to 113,871.56, 157,176.12 and 66,146.36 is: 91,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,871.56 : 157,176.12 = 66,146.36 : x
  2. Step 2: Convert to fraction form
    113,871.56/157,176.12 = 66,146.36/x
  3. Step 3: Cross multiply
    113,871.56x = 157,176.12 × 66,146.36
  4. Step 4: Simplify right side
    113,871.56x = 10,396,628,216.92
  5. Step 5: Solve for x
    x = 10,396,628,216.92/113,871.56
  6. Step 6: Final answer
    x = 91,301.36

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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.