Home / 122,507.40-183,761.10-39,409.80

Finding the Fourth Proportional to 122,507.40, 183,761.10 and 39,409.80

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Solution

The fourth proportional to 122,507.40, 183,761.10 and 39,409.80 is: 59,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,507.40 : 183,761.10 = 39,409.80 : x
  2. Step 2: Convert to fraction form
    122,507.40/183,761.10 = 39,409.80/x
  3. Step 3: Cross multiply
    122,507.40x = 183,761.10 × 39,409.80
  4. Step 4: Simplify right side
    122,507.40x = 7,241,988,198.78
  5. Step 5: Solve for x
    x = 7,241,988,198.78/122,507.40
  6. Step 6: Final answer
    x = 59,114.70

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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.