Home / 147,544.31-221,537.87-84,435.70

Finding the Fourth Proportional to 147,544.31, 221,537.87 and 84,435.70

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Solution

The fourth proportional to 147,544.31, 221,537.87 and 84,435.70 is: 126,780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,544.31 : 221,537.87 = 84,435.70 : x
  2. Step 2: Convert to fraction form
    147,544.31/221,537.87 = 84,435.70/x
  3. Step 3: Cross multiply
    147,544.31x = 221,537.87 × 84,435.70
  4. Step 4: Simplify right side
    147,544.31x = 18,705,703,600.09
  5. Step 5: Solve for x
    x = 18,705,703,600.09/147,544.31
  6. Step 6: Final answer
    x = 126,780.24

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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.