Home / 120,823.65-166,742.19-67,108.86

Finding the Fourth Proportional to 120,823.65, 166,742.19 and 67,108.86

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Solution

The fourth proportional to 120,823.65, 166,742.19 and 67,108.86 is: 92,613.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,823.65 : 166,742.19 = 67,108.86 : x
  2. Step 2: Convert to fraction form
    120,823.65/166,742.19 = 67,108.86/x
  3. Step 3: Cross multiply
    120,823.65x = 166,742.19 × 67,108.86
  4. Step 4: Simplify right side
    120,823.65x = 11,189,878,284.80
  5. Step 5: Solve for x
    x = 11,189,878,284.80/120,823.65
  6. Step 6: Final answer
    x = 92,613.31

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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.