Home / 122,153.98-183,439-79,531.96

Finding the Fourth Proportional to 122,153.98, 183,439 and 79,531.96

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Solution

The fourth proportional to 122,153.98, 183,439 and 79,531.96 is: 119,433.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,153.98 : 183,439 = 79,531.96 : x
  2. Step 2: Convert to fraction form
    122,153.98/183,439 = 79,531.96/x
  3. Step 3: Cross multiply
    122,153.98x = 183,439 × 79,531.96
  4. Step 4: Simplify right side
    122,153.98x = 14,589,263,210.44
  5. Step 5: Solve for x
    x = 14,589,263,210.44/122,153.98
  6. Step 6: Final answer
    x = 119,433.38

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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.