Home / 121,305.60-181,982.96-51,184.80

Finding the Fourth Proportional to 121,305.60, 181,982.96 and 51,184.80

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Solution

The fourth proportional to 121,305.60, 181,982.96 and 51,184.80 is: 76,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,305.60 : 181,982.96 = 51,184.80 : x
  2. Step 2: Convert to fraction form
    121,305.60/181,982.96 = 51,184.80/x
  3. Step 3: Cross multiply
    121,305.60x = 181,982.96 × 51,184.80
  4. Step 4: Simplify right side
    121,305.60x = 9,314,761,411.01
  5. Step 5: Solve for x
    x = 9,314,761,411.01/121,305.60
  6. Step 6: Final answer
    x = 76,787.56

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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.