Home / 166,339.90-229,549.05-90,888.40

Finding the Fourth Proportional to 166,339.90, 229,549.05 and 90,888.40

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Solution

The fourth proportional to 166,339.90, 229,549.05 and 90,888.40 is: 125,425.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,339.90 : 229,549.05 = 90,888.40 : x
  2. Step 2: Convert to fraction form
    166,339.90/229,549.05 = 90,888.40/x
  3. Step 3: Cross multiply
    166,339.90x = 229,549.05 × 90,888.40
  4. Step 4: Simplify right side
    166,339.90x = 20,863,345,876.02
  5. Step 5: Solve for x
    x = 20,863,345,876.02/166,339.90
  6. Step 6: Final answer
    x = 125,425.99

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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.