Home / 122,105.40-168,500.46-68,389.56

Finding the Fourth Proportional to 122,105.40, 168,500.46 and 68,389.56

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Solution

The fourth proportional to 122,105.40, 168,500.46 and 68,389.56 is: 94,374.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,105.40 : 168,500.46 = 68,389.56 : x
  2. Step 2: Convert to fraction form
    122,105.40/168,500.46 = 68,389.56/x
  3. Step 3: Cross multiply
    122,105.40x = 168,500.46 × 68,389.56
  4. Step 4: Simplify right side
    122,105.40x = 11,523,672,319.20
  5. Step 5: Solve for x
    x = 11,523,672,319.20/122,105.40
  6. Step 6: Final answer
    x = 94,374.80

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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.