Home / 135,161.02-186,535.80-74,736.24

Finding the Fourth Proportional to 135,161.02, 186,535.80 and 74,736.24

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Solution

The fourth proportional to 135,161.02, 186,535.80 and 74,736.24 is: 103,143.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,161.02 : 186,535.80 = 74,736.24 : x
  2. Step 2: Convert to fraction form
    135,161.02/186,535.80 = 74,736.24/x
  3. Step 3: Cross multiply
    135,161.02x = 186,535.80 × 74,736.24
  4. Step 4: Simplify right side
    135,161.02x = 13,940,984,317.39
  5. Step 5: Solve for x
    x = 13,940,984,317.39/135,161.02
  6. Step 6: Final answer
    x = 103,143.53

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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.