Home / 252,065.71-378,136.15-89,947.14

Finding the Fourth Proportional to 252,065.71, 378,136.15 and 89,947.14

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Solution

The fourth proportional to 252,065.71, 378,136.15 and 89,947.14 is: 134,934.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,065.71 : 378,136.15 = 89,947.14 : x
  2. Step 2: Convert to fraction form
    252,065.71/378,136.15 = 89,947.14/x
  3. Step 3: Cross multiply
    252,065.71x = 378,136.15 × 89,947.14
  4. Step 4: Simplify right side
    252,065.71x = 34,012,263,257.25
  5. Step 5: Solve for x
    x = 34,012,263,257.25/252,065.71
  6. Step 6: Final answer
    x = 134,934.11

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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.