Home / 166,769.82-230,142.40-90,288.90

Finding the Fourth Proportional to 166,769.82, 230,142.40 and 90,288.90

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Solution

The fourth proportional to 166,769.82, 230,142.40 and 90,288.90 is: 124,598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,769.82 : 230,142.40 = 90,288.90 : x
  2. Step 2: Convert to fraction form
    166,769.82/230,142.40 = 90,288.90/x
  3. Step 3: Cross multiply
    166,769.82x = 230,142.40 × 90,288.90
  4. Step 4: Simplify right side
    166,769.82x = 20,779,303,913.64
  5. Step 5: Solve for x
    x = 20,779,303,913.64/166,769.82
  6. Step 6: Final answer
    x = 124,598.71

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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.