Home / 166,141.21-229,274.81-90,689.71

Finding the Fourth Proportional to 166,141.21, 229,274.81 and 90,689.71

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Solution

The fourth proportional to 166,141.21, 229,274.81 and 90,689.71 is: 125,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,141.21 : 229,274.81 = 90,689.71 : x
  2. Step 2: Convert to fraction form
    166,141.21/229,274.81 = 90,689.71/x
  3. Step 3: Cross multiply
    166,141.21x = 229,274.81 × 90,689.71
  4. Step 4: Simplify right side
    166,141.21x = 20,792,866,029.21
  5. Step 5: Solve for x
    x = 20,792,866,029.21/166,141.21
  6. Step 6: Final answer
    x = 125,151.77

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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.