Home / 119,720.52-165,221.74-66,005.44

Finding the Fourth Proportional to 119,720.52, 165,221.74 and 66,005.44

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Solution

The fourth proportional to 119,720.52, 165,221.74 and 66,005.44 is: 91,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,720.52 : 165,221.74 = 66,005.44 : x
  2. Step 2: Convert to fraction form
    119,720.52/165,221.74 = 66,005.44/x
  3. Step 3: Cross multiply
    119,720.52x = 165,221.74 × 66,005.44
  4. Step 4: Simplify right side
    119,720.52x = 10,905,533,646.27
  5. Step 5: Solve for x
    x = 10,905,533,646.27/119,720.52
  6. Step 6: Final answer
    x = 91,091.60

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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.