Home / 113,868.56-157,171.98-66,143.36

Finding the Fourth Proportional to 113,868.56, 157,171.98 and 66,143.36

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Solution

The fourth proportional to 113,868.56, 157,171.98 and 66,143.36 is: 91,297.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,868.56 : 157,171.98 = 66,143.36 : x
  2. Step 2: Convert to fraction form
    113,868.56/157,171.98 = 66,143.36/x
  3. Step 3: Cross multiply
    113,868.56x = 157,171.98 × 66,143.36
  4. Step 4: Simplify right side
    113,868.56x = 10,395,882,855.05
  5. Step 5: Solve for x
    x = 10,395,882,855.05/113,868.56
  6. Step 6: Final answer
    x = 91,297.22

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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.