Home / 127,685.82-191,464.65-74,395.02

Finding the Fourth Proportional to 127,685.82, 191,464.65 and 74,395.02

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Solution

The fourth proportional to 127,685.82, 191,464.65 and 74,395.02 is: 111,555.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,685.82 : 191,464.65 = 74,395.02 : x
  2. Step 2: Convert to fraction form
    127,685.82/191,464.65 = 74,395.02/x
  3. Step 3: Cross multiply
    127,685.82x = 191,464.65 × 74,395.02
  4. Step 4: Simplify right side
    127,685.82x = 14,244,016,466.04
  5. Step 5: Solve for x
    x = 14,244,016,466.04/127,685.82
  6. Step 6: Final answer
    x = 111,555.19

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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.