Home / 122,531.70-183,889.08-91,014.60

Finding the Fourth Proportional to 122,531.70, 183,889.08 and 91,014.60

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Solution

The fourth proportional to 122,531.70, 183,889.08 and 91,014.60 is: 136,589.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,531.70 : 183,889.08 = 91,014.60 : x
  2. Step 2: Convert to fraction form
    122,531.70/183,889.08 = 91,014.60/x
  3. Step 3: Cross multiply
    122,531.70x = 183,889.08 × 91,014.60
  4. Step 4: Simplify right side
    122,531.70x = 16,736,591,060.57
  5. Step 5: Solve for x
    x = 16,736,591,060.57/122,531.70
  6. Step 6: Final answer
    x = 136,589.89

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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.