Home / 122,029.74-168,415.20-74,311.02

Finding the Fourth Proportional to 122,029.74, 168,415.20 and 74,311.02

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Solution

The fourth proportional to 122,029.74, 168,415.20 and 74,311.02 is: 102,557.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,029.74 : 168,415.20 = 74,311.02 : x
  2. Step 2: Convert to fraction form
    122,029.74/168,415.20 = 74,311.02/x
  3. Step 3: Cross multiply
    122,029.74x = 168,415.20 × 74,311.02
  4. Step 4: Simplify right side
    122,029.74x = 12,515,105,295.50
  5. Step 5: Solve for x
    x = 12,515,105,295.50/122,029.74
  6. Step 6: Final answer
    x = 102,557.83

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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.