Home / 122,735.08-183,914.04-72,715.66

Finding the Fourth Proportional to 122,735.08, 183,914.04 and 72,715.66

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Solution

The fourth proportional to 122,735.08, 183,914.04 and 72,715.66 is: 108,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,735.08 : 183,914.04 = 72,715.66 : x
  2. Step 2: Convert to fraction form
    122,735.08/183,914.04 = 72,715.66/x
  3. Step 3: Cross multiply
    122,735.08x = 183,914.04 × 72,715.66
  4. Step 4: Simplify right side
    122,735.08x = 13,373,430,801.87
  5. Step 5: Solve for x
    x = 13,373,430,801.87/122,735.08
  6. Step 6: Final answer
    x = 108,961.76

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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.