Home / 122,013.20-183,019.80-43,127.30

Finding the Fourth Proportional to 122,013.20, 183,019.80 and 43,127.30

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Solution

The fourth proportional to 122,013.20, 183,019.80 and 43,127.30 is: 64,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,013.20 : 183,019.80 = 43,127.30 : x
  2. Step 2: Convert to fraction form
    122,013.20/183,019.80 = 43,127.30/x
  3. Step 3: Cross multiply
    122,013.20x = 183,019.80 × 43,127.30
  4. Step 4: Simplify right side
    122,013.20x = 7,893,149,820.54
  5. Step 5: Solve for x
    x = 7,893,149,820.54/122,013.20
  6. Step 6: Final answer
    x = 64,690.95

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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.