Home / 119,720.06-165,214.85-66,007.20

Finding the Fourth Proportional to 119,720.06, 165,214.85 and 66,007.20

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Solution

The fourth proportional to 119,720.06, 165,214.85 and 66,007.20 is: 91,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,720.06 : 165,214.85 = 66,007.20 : x
  2. Step 2: Convert to fraction form
    119,720.06/165,214.85 = 66,007.20/x
  3. Step 3: Cross multiply
    119,720.06x = 165,214.85 × 66,007.20
  4. Step 4: Simplify right side
    119,720.06x = 10,905,369,316.88
  5. Step 5: Solve for x
    x = 10,905,369,316.88/119,720.06
  6. Step 6: Final answer
    x = 91,090.58

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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.