Home / 120,177.12-165,883.86-84,376.02

Finding the Fourth Proportional to 120,177.12, 165,883.86 and 84,376.02

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Solution

The fourth proportional to 120,177.12, 165,883.86 and 84,376.02 is: 116,466.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,177.12 : 165,883.86 = 84,376.02 : x
  2. Step 2: Convert to fraction form
    120,177.12/165,883.86 = 84,376.02/x
  3. Step 3: Cross multiply
    120,177.12x = 165,883.86 × 84,376.02
  4. Step 4: Simplify right side
    120,177.12x = 13,996,619,889.04
  5. Step 5: Solve for x
    x = 13,996,619,889.04/120,177.12
  6. Step 6: Final answer
    x = 116,466.59

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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.