Home / 141,306.97-212,140.31-91,595.09

Finding the Fourth Proportional to 141,306.97, 212,140.31 and 91,595.09

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Solution

The fourth proportional to 141,306.97, 212,140.31 and 91,595.09 is: 137,509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,306.97 : 212,140.31 = 91,595.09 : x
  2. Step 2: Convert to fraction form
    141,306.97/212,140.31 = 91,595.09/x
  3. Step 3: Cross multiply
    141,306.97x = 212,140.31 × 91,595.09
  4. Step 4: Simplify right side
    141,306.97x = 19,431,010,787.08
  5. Step 5: Solve for x
    x = 19,431,010,787.08/141,306.97
  6. Step 6: Final answer
    x = 137,509.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.