Home / 111,187.93-153,462.51-102,221.23

Finding the Fourth Proportional to 111,187.93, 153,462.51 and 102,221.23

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Solution

The fourth proportional to 111,187.93, 153,462.51 and 102,221.23 is: 141,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,187.93 : 153,462.51 = 102,221.23 : x
  2. Step 2: Convert to fraction form
    111,187.93/153,462.51 = 102,221.23/x
  3. Step 3: Cross multiply
    111,187.93x = 153,462.51 × 102,221.23
  4. Step 4: Simplify right side
    111,187.93x = 15,687,126,531.09
  5. Step 5: Solve for x
    x = 15,687,126,531.09/111,187.93
  6. Step 6: Final answer
    x = 141,086.60

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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.