Home / 122,486.60-183,409.13-80,233.76

Finding the Fourth Proportional to 122,486.60, 183,409.13 and 80,233.76

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Solution

The fourth proportional to 122,486.60, 183,409.13 and 80,233.76 is: 120,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,486.60 : 183,409.13 = 80,233.76 : x
  2. Step 2: Convert to fraction form
    122,486.60/183,409.13 = 80,233.76/x
  3. Step 3: Cross multiply
    122,486.60x = 183,409.13 × 80,233.76
  4. Step 4: Simplify right side
    122,486.60x = 14,715,602,800.01
  5. Step 5: Solve for x
    x = 14,715,602,800.01/122,486.60
  6. Step 6: Final answer
    x = 120,140.52

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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.