Home / 131,991.34-182,151.64-74,639.24

Finding the Fourth Proportional to 131,991.34, 182,151.64 and 74,639.24

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Solution

The fourth proportional to 131,991.34, 182,151.64 and 74,639.24 is: 103,004.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,991.34 : 182,151.64 = 74,639.24 : x
  2. Step 2: Convert to fraction form
    131,991.34/182,151.64 = 74,639.24/x
  3. Step 3: Cross multiply
    131,991.34x = 182,151.64 × 74,639.24
  4. Step 4: Simplify right side
    131,991.34x = 13,595,660,243.13
  5. Step 5: Solve for x
    x = 13,595,660,243.13/131,991.34
  6. Step 6: Final answer
    x = 103,004.18

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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.