Home / 122,965.20-184,534.20-78,699.60

Finding the Fourth Proportional to 122,965.20, 184,534.20 and 78,699.60

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Solution

The fourth proportional to 122,965.20, 184,534.20 and 78,699.60 is: 118,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,965.20 : 184,534.20 = 78,699.60 : x
  2. Step 2: Convert to fraction form
    122,965.20/184,534.20 = 78,699.60/x
  3. Step 3: Cross multiply
    122,965.20x = 184,534.20 × 78,699.60
  4. Step 4: Simplify right side
    122,965.20x = 14,522,767,726.32
  5. Step 5: Solve for x
    x = 14,522,767,726.32/122,965.20
  6. Step 6: Final answer
    x = 118,104.70

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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.