Home / 166,137.71-229,269.98-90,686.21

Finding the Fourth Proportional to 166,137.71, 229,269.98 and 90,686.21

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Solution

The fourth proportional to 166,137.71, 229,269.98 and 90,686.21 is: 125,146.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,137.71 : 229,269.98 = 90,686.21 : x
  2. Step 2: Convert to fraction form
    166,137.71/229,269.98 = 90,686.21/x
  3. Step 3: Cross multiply
    166,137.71x = 229,269.98 × 90,686.21
  4. Step 4: Simplify right side
    166,137.71x = 20,791,625,552.98
  5. Step 5: Solve for x
    x = 20,791,625,552.98/166,137.71
  6. Step 6: Final answer
    x = 125,146.94

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1.5x scale

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.