Home / 111,142.77-153,367.29-62,742.03

Finding the Fourth Proportional to 111,142.77, 153,367.29 and 62,742.03

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Solution

The fourth proportional to 111,142.77, 153,367.29 and 62,742.03 is: 86,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,142.77 : 153,367.29 = 62,742.03 : x
  2. Step 2: Convert to fraction form
    111,142.77/153,367.29 = 62,742.03/x
  3. Step 3: Cross multiply
    111,142.77x = 153,367.29 × 62,742.03
  4. Step 4: Simplify right side
    111,142.77x = 9,622,575,110.20
  5. Step 5: Solve for x
    x = 9,622,575,110.20/111,142.77
  6. Step 6: Final answer
    x = 86,578.51

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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.