Home / 113,886.49-157,163.37-66,142.91

Finding the Fourth Proportional to 113,886.49, 157,163.37 and 66,142.91

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Solution

The fourth proportional to 113,886.49, 157,163.37 and 66,142.91 is: 91,277.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,886.49 : 157,163.37 = 66,142.91 : x
  2. Step 2: Convert to fraction form
    113,886.49/157,163.37 = 66,142.91/x
  3. Step 3: Cross multiply
    113,886.49x = 157,163.37 × 66,142.91
  4. Step 4: Simplify right side
    113,886.49x = 10,395,242,306.49
  5. Step 5: Solve for x
    x = 10,395,242,306.49/113,886.49
  6. Step 6: Final answer
    x = 91,277.22

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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.