Home / 122,470.83-183,535.11-66,189.60

Finding the Fourth Proportional to 122,470.83, 183,535.11 and 66,189.60

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Solution

The fourth proportional to 122,470.83, 183,535.11 and 66,189.60 is: 99,191.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,470.83 : 183,535.11 = 66,189.60 : x
  2. Step 2: Convert to fraction form
    122,470.83/183,535.11 = 66,189.60/x
  3. Step 3: Cross multiply
    122,470.83x = 183,535.11 × 66,189.60
  4. Step 4: Simplify right side
    122,470.83x = 12,148,115,516.86
  5. Step 5: Solve for x
    x = 12,148,115,516.86/122,470.83
  6. Step 6: Final answer
    x = 99,191.91

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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.