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Finding the Fourth Proportional to 166,680.10, 250,020.15 and 42,021.10

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Solution

The fourth proportional to 166,680.10, 250,020.15 and 42,021.10 is: 63,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,680.10 : 250,020.15 = 42,021.10 : x
  2. Step 2: Convert to fraction form
    166,680.10/250,020.15 = 42,021.10/x
  3. Step 3: Cross multiply
    166,680.10x = 250,020.15 × 42,021.10
  4. Step 4: Simplify right side
    166,680.10x = 10,506,121,725.17
  5. Step 5: Solve for x
    x = 10,506,121,725.17/166,680.10
  6. Step 6: Final answer
    x = 63,031.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.