Home / 134,972.46-186,253.83-81,274.86

Finding the Fourth Proportional to 134,972.46, 186,253.83 and 81,274.86

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Solution

The fourth proportional to 134,972.46, 186,253.83 and 81,274.86 is: 112,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,972.46 : 186,253.83 = 81,274.86 : x
  2. Step 2: Convert to fraction form
    134,972.46/186,253.83 = 81,274.86/x
  3. Step 3: Cross multiply
    134,972.46x = 186,253.83 × 81,274.86
  4. Step 4: Simplify right side
    134,972.46x = 15,137,753,957.71
  5. Step 5: Solve for x
    x = 15,137,753,957.71/134,972.46
  6. Step 6: Final answer
    x = 112,154.39

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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.