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Finding the Fourth Proportional to 116,650.08, 161,008.80 and 68,920.80

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Solution

The fourth proportional to 116,650.08, 161,008.80 and 68,920.80 is: 95,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,650.08 : 161,008.80 = 68,920.80 : x
  2. Step 2: Convert to fraction form
    116,650.08/161,008.80 = 68,920.80/x
  3. Step 3: Cross multiply
    116,650.08x = 161,008.80 × 68,920.80
  4. Step 4: Simplify right side
    116,650.08x = 11,096,855,303.04
  5. Step 5: Solve for x
    x = 11,096,855,303.04/116,650.08
  6. Step 6: Final answer
    x = 95,129.43

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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.