Home / 119,918.10-165,487.01-66,203.16

Finding the Fourth Proportional to 119,918.10, 165,487.01 and 66,203.16

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Solution

The fourth proportional to 119,918.10, 165,487.01 and 66,203.16 is: 91,360.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,918.10 : 165,487.01 = 66,203.16 : x
  2. Step 2: Convert to fraction form
    119,918.10/165,487.01 = 66,203.16/x
  3. Step 3: Cross multiply
    119,918.10x = 165,487.01 × 66,203.16
  4. Step 4: Simplify right side
    119,918.10x = 10,955,763,000.95
  5. Step 5: Solve for x
    x = 10,955,763,000.95/119,918.10
  6. Step 6: Final answer
    x = 91,360.38

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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.