Home / 166,129.92-229,262.40-90,681.12

Finding the Fourth Proportional to 166,129.92, 229,262.40 and 90,681.12

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Solution

The fourth proportional to 166,129.92, 229,262.40 and 90,681.12 is: 125,141.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,129.92 : 229,262.40 = 90,681.12 : x
  2. Step 2: Convert to fraction form
    166,129.92/229,262.40 = 90,681.12/x
  3. Step 3: Cross multiply
    166,129.92x = 229,262.40 × 90,681.12
  4. Step 4: Simplify right side
    166,129.92x = 20,789,771,205.89
  5. Step 5: Solve for x
    x = 20,789,771,205.89/166,129.92
  6. Step 6: Final answer
    x = 125,141.64

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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.