Home / 127,998.30-191,841.73-90,569.15

Finding the Fourth Proportional to 127,998.30, 191,841.73 and 90,569.15

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Solution

The fourth proportional to 127,998.30, 191,841.73 and 90,569.15 is: 135,743.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,998.30 : 191,841.73 = 90,569.15 : x
  2. Step 2: Convert to fraction form
    127,998.30/191,841.73 = 90,569.15/x
  3. Step 3: Cross multiply
    127,998.30x = 191,841.73 × 90,569.15
  4. Step 4: Simplify right side
    127,998.30x = 17,374,941,235.00
  5. Step 5: Solve for x
    x = 17,374,941,235.00/127,998.30
  6. Step 6: Final answer
    x = 135,743.53

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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.