Home / 137,424.10-206,136.15-106,281.70

Finding the Fourth Proportional to 137,424.10, 206,136.15 and 106,281.70

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Solution

The fourth proportional to 137,424.10, 206,136.15 and 106,281.70 is: 159,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,424.10 : 206,136.15 = 106,281.70 : x
  2. Step 2: Convert to fraction form
    137,424.10/206,136.15 = 106,281.70/x
  3. Step 3: Cross multiply
    137,424.10x = 206,136.15 × 106,281.70
  4. Step 4: Simplify right side
    137,424.10x = 21,908,500,453.46
  5. Step 5: Solve for x
    x = 21,908,500,453.46/137,424.10
  6. Step 6: Final answer
    x = 159,422.55

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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.