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Finding the Fourth Proportional to 119,700.21, 165,186.81 and 65,984.07

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Solution

The fourth proportional to 119,700.21, 165,186.81 and 65,984.07 is: 91,058.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,700.21 : 165,186.81 = 65,984.07 : x
  2. Step 2: Convert to fraction form
    119,700.21/165,186.81 = 65,984.07/x
  3. Step 3: Cross multiply
    119,700.21x = 165,186.81 × 65,984.07
  4. Step 4: Simplify right side
    119,700.21x = 10,899,698,034.12
  5. Step 5: Solve for x
    x = 10,899,698,034.12/119,700.21
  6. Step 6: Final answer
    x = 91,058.30

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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.