Home / 127,986.93-176,657.09-74,289.25

Finding the Fourth Proportional to 127,986.93, 176,657.09 and 74,289.25

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Solution

The fourth proportional to 127,986.93, 176,657.09 and 74,289.25 is: 102,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,986.93 : 176,657.09 = 74,289.25 : x
  2. Step 2: Convert to fraction form
    127,986.93/176,657.09 = 74,289.25/x
  3. Step 3: Cross multiply
    127,986.93x = 176,657.09 × 74,289.25
  4. Step 4: Simplify right side
    127,986.93x = 13,123,722,205.78
  5. Step 5: Solve for x
    x = 13,123,722,205.78/127,986.93
  6. Step 6: Final answer
    x = 102,539.55

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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.