Home / 119,748.87-165,249.65-66,036.15

Finding the Fourth Proportional to 119,748.87, 165,249.65 and 66,036.15

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Solution

The fourth proportional to 119,748.87, 165,249.65 and 66,036.15 is: 91,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,748.87 : 165,249.65 = 66,036.15 : x
  2. Step 2: Convert to fraction form
    119,748.87/165,249.65 = 66,036.15/x
  3. Step 3: Cross multiply
    119,748.87x = 165,249.65 × 66,036.15
  4. Step 4: Simplify right side
    119,748.87x = 10,912,450,839.94
  5. Step 5: Solve for x
    x = 10,912,450,839.94/119,748.87
  6. Step 6: Final answer
    x = 91,127.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.