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Finding the Fourth Proportional to 166,762.59, 230,130.09 and 91,311.09

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Solution

The fourth proportional to 166,762.59, 230,130.09 and 91,311.09 is: 126,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,762.59 : 230,130.09 = 91,311.09 : x
  2. Step 2: Convert to fraction form
    166,762.59/230,130.09 = 91,311.09/x
  3. Step 3: Cross multiply
    166,762.59x = 230,130.09 × 91,311.09
  4. Step 4: Simplify right side
    166,762.59x = 21,013,429,359.70
  5. Step 5: Solve for x
    x = 21,013,429,359.70/166,762.59
  6. Step 6: Final answer
    x = 126,008.05

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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.