Home / 122,157.45-168,586.60-76,874.24

Finding the Fourth Proportional to 122,157.45, 168,586.60 and 76,874.24

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Solution

The fourth proportional to 122,157.45, 168,586.60 and 76,874.24 is: 106,092.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,157.45 : 168,586.60 = 76,874.24 : x
  2. Step 2: Convert to fraction form
    122,157.45/168,586.60 = 76,874.24/x
  3. Step 3: Cross multiply
    122,157.45x = 168,586.60 × 76,874.24
  4. Step 4: Simplify right side
    122,157.45x = 12,959,966,749.18
  5. Step 5: Solve for x
    x = 12,959,966,749.18/122,157.45
  6. Step 6: Final answer
    x = 106,092.32

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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.