Home / 147,827.40-221,815.38-68,947.80

Finding the Fourth Proportional to 147,827.40, 221,815.38 and 68,947.80

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Solution

The fourth proportional to 147,827.40, 221,815.38 and 68,947.80 is: 103,456.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,827.40 : 221,815.38 = 68,947.80 : x
  2. Step 2: Convert to fraction form
    147,827.40/221,815.38 = 68,947.80/x
  3. Step 3: Cross multiply
    147,827.40x = 221,815.38 × 68,947.80
  4. Step 4: Simplify right side
    147,827.40x = 15,293,682,457.16
  5. Step 5: Solve for x
    x = 15,293,682,457.16/147,827.40
  6. Step 6: Final answer
    x = 103,456.34

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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.