Home / 141,102.51-194,689.47-80,663.39

Finding the Fourth Proportional to 141,102.51, 194,689.47 and 80,663.39

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Solution

The fourth proportional to 141,102.51, 194,689.47 and 80,663.39 is: 111,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,102.51 : 194,689.47 = 80,663.39 : x
  2. Step 2: Convert to fraction form
    141,102.51/194,689.47 = 80,663.39/x
  3. Step 3: Cross multiply
    141,102.51x = 194,689.47 × 80,663.39
  4. Step 4: Simplify right side
    141,102.51x = 15,704,313,801.76
  5. Step 5: Solve for x
    x = 15,704,313,801.76/141,102.51
  6. Step 6: Final answer
    x = 111,297.20

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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.