Home / 122,867.96-169,556.10-71,915.72

Finding the Fourth Proportional to 122,867.96, 169,556.10 and 71,915.72

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Solution

The fourth proportional to 122,867.96, 169,556.10 and 71,915.72 is: 99,242.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,867.96 : 169,556.10 = 71,915.72 : x
  2. Step 2: Convert to fraction form
    122,867.96/169,556.10 = 71,915.72/x
  3. Step 3: Cross multiply
    122,867.96x = 169,556.10 × 71,915.72
  4. Step 4: Simplify right side
    122,867.96x = 12,193,749,011.89
  5. Step 5: Solve for x
    x = 12,193,749,011.89/122,867.96
  6. Step 6: Final answer
    x = 99,242.71

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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.