Home / 122,103.22-168,502.96-71,150.91

Finding the Fourth Proportional to 122,103.22, 168,502.96 and 71,150.91

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Solution

The fourth proportional to 122,103.22, 168,502.96 and 71,150.91 is: 98,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,103.22 : 168,502.96 = 71,150.91 : x
  2. Step 2: Convert to fraction form
    122,103.22/168,502.96 = 71,150.91/x
  3. Step 3: Cross multiply
    122,103.22x = 168,502.96 × 71,150.91
  4. Step 4: Simplify right side
    122,103.22x = 11,989,138,099.18
  5. Step 5: Solve for x
    x = 11,989,138,099.18/122,103.22
  6. Step 6: Final answer
    x = 98,188.55

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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.