Home / 119,720.65-165,215.62-66,007.59

Finding the Fourth Proportional to 119,720.65, 165,215.62 and 66,007.59

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Solution

The fourth proportional to 119,720.65, 165,215.62 and 66,007.59 is: 91,091.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,720.65 : 165,215.62 = 66,007.59 : x
  2. Step 2: Convert to fraction form
    119,720.65/165,215.62 = 66,007.59/x
  3. Step 3: Cross multiply
    119,720.65x = 165,215.62 × 66,007.59
  4. Step 4: Simplify right side
    119,720.65x = 10,905,483,750.44
  5. Step 5: Solve for x
    x = 10,905,483,750.44/119,720.65
  6. Step 6: Final answer
    x = 91,091.09

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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.