Home / 143,036.31-214,586.88-76,441.35

Finding the Fourth Proportional to 143,036.31, 214,586.88 and 76,441.35

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Solution

The fourth proportional to 143,036.31, 214,586.88 and 76,441.35 is: 114,679.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,036.31 : 214,586.88 = 76,441.35 : x
  2. Step 2: Convert to fraction form
    143,036.31/214,586.88 = 76,441.35/x
  3. Step 3: Cross multiply
    143,036.31x = 214,586.88 × 76,441.35
  4. Step 4: Simplify right side
    143,036.31x = 16,403,310,799.49
  5. Step 5: Solve for x
    x = 16,403,310,799.49/143,036.31
  6. Step 6: Final answer
    x = 114,679.35

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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.