Home / 143,623.88-215,435.82-38,440.11

Finding the Fourth Proportional to 143,623.88, 215,435.82 and 38,440.11

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Solution

The fourth proportional to 143,623.88, 215,435.82 and 38,440.11 is: 57,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,623.88 : 215,435.82 = 38,440.11 : x
  2. Step 2: Convert to fraction form
    143,623.88/215,435.82 = 38,440.11/x
  3. Step 3: Cross multiply
    143,623.88x = 215,435.82 × 38,440.11
  4. Step 4: Simplify right side
    143,623.88x = 8,281,376,618.74
  5. Step 5: Solve for x
    x = 8,281,376,618.74/143,623.88
  6. Step 6: Final answer
    x = 57,660.17

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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.