Home / 122,456.20-183,684.30-52,342.60

Finding the Fourth Proportional to 122,456.20, 183,684.30 and 52,342.60

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Solution

The fourth proportional to 122,456.20, 183,684.30 and 52,342.60 is: 78,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,456.20 : 183,684.30 = 52,342.60 : x
  2. Step 2: Convert to fraction form
    122,456.20/183,684.30 = 52,342.60/x
  3. Step 3: Cross multiply
    122,456.20x = 183,684.30 × 52,342.60
  4. Step 4: Simplify right side
    122,456.20x = 9,614,513,841.18
  5. Step 5: Solve for x
    x = 9,614,513,841.18/122,456.20
  6. Step 6: Final answer
    x = 78,513.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.