Home / 166,430-229,673.40-90,979.04

Finding the Fourth Proportional to 166,430, 229,673.40 and 90,979.04

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Solution

The fourth proportional to 166,430, 229,673.40 and 90,979.04 is: 125,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,430 : 229,673.40 = 90,979.04 : x
  2. Step 2: Convert to fraction form
    166,430/229,673.40 = 90,979.04/x
  3. Step 3: Cross multiply
    166,430x = 229,673.40 × 90,979.04
  4. Step 4: Simplify right side
    166,430x = 20,895,465,445.54
  5. Step 5: Solve for x
    x = 20,895,465,445.54/166,430
  6. Step 6: Final answer
    x = 125,551.08

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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.