Home / 122,116.80-183,141.36-43,220.64

Finding the Fourth Proportional to 122,116.80, 183,141.36 and 43,220.64

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Solution

The fourth proportional to 122,116.80, 183,141.36 and 43,220.64 is: 64,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,116.80 : 183,141.36 = 43,220.64 : x
  2. Step 2: Convert to fraction form
    122,116.80/183,141.36 = 43,220.64/x
  3. Step 3: Cross multiply
    122,116.80x = 183,141.36 × 43,220.64
  4. Step 4: Simplify right side
    122,116.80x = 7,915,486,789.67
  5. Step 5: Solve for x
    x = 7,915,486,789.67/122,116.80
  6. Step 6: Final answer
    x = 64,818.98

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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.