Home / 90,842.31-136,351.35-65,567.88

Finding the Fourth Proportional to 90,842.31, 136,351.35 and 65,567.88

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Solution

The fourth proportional to 90,842.31, 136,351.35 and 65,567.88 is: 98,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,842.31 : 136,351.35 = 65,567.88 : x
  2. Step 2: Convert to fraction form
    90,842.31/136,351.35 = 65,567.88/x
  3. Step 3: Cross multiply
    90,842.31x = 136,351.35 × 65,567.88
  4. Step 4: Simplify right side
    90,842.31x = 8,940,268,954.64
  5. Step 5: Solve for x
    x = 8,940,268,954.64/90,842.31
  6. Step 6: Final answer
    x = 98,415.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.