Home / 166,387.36-229,611.18-90,936.40

Finding the Fourth Proportional to 166,387.36, 229,611.18 and 90,936.40

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Solution

The fourth proportional to 166,387.36, 229,611.18 and 90,936.40 is: 125,490.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,387.36 : 229,611.18 = 90,936.40 : x
  2. Step 2: Convert to fraction form
    166,387.36/229,611.18 = 90,936.40/x
  3. Step 3: Cross multiply
    166,387.36x = 229,611.18 × 90,936.40
  4. Step 4: Simplify right side
    166,387.36x = 20,880,014,108.95
  5. Step 5: Solve for x
    x = 20,880,014,108.95/166,387.36
  6. Step 6: Final answer
    x = 125,490.39

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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.