Home / 122,457.10-183,793.65-72,474.70

Finding the Fourth Proportional to 122,457.10, 183,793.65 and 72,474.70

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Solution

The fourth proportional to 122,457.10, 183,793.65 and 72,474.70 is: 108,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,457.10 : 183,793.65 = 72,474.70 : x
  2. Step 2: Convert to fraction form
    122,457.10/183,793.65 = 72,474.70/x
  3. Step 3: Cross multiply
    122,457.10x = 183,793.65 × 72,474.70
  4. Step 4: Simplify right side
    122,457.10x = 13,320,389,645.66
  5. Step 5: Solve for x
    x = 13,320,389,645.66/122,457.10
  6. Step 6: Final answer
    x = 108,775.97

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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.