Home / 134,900.63-186,164.38-74,471.31

Finding the Fourth Proportional to 134,900.63, 186,164.38 and 74,471.31

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Solution

The fourth proportional to 134,900.63, 186,164.38 and 74,471.31 is: 102,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,900.63 : 186,164.38 = 74,471.31 : x
  2. Step 2: Convert to fraction form
    134,900.63/186,164.38 = 74,471.31/x
  3. Step 3: Cross multiply
    134,900.63x = 186,164.38 × 74,471.31
  4. Step 4: Simplify right side
    134,900.63x = 13,863,904,136.94
  5. Step 5: Solve for x
    x = 13,863,904,136.94/134,900.63
  6. Step 6: Final answer
    x = 102,771.23

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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.