Home / 122,263.72-183,448.38-66,143.37

Finding the Fourth Proportional to 122,263.72, 183,448.38 and 66,143.37

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Solution

The fourth proportional to 122,263.72, 183,448.38 and 66,143.37 is: 99,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,263.72 : 183,448.38 = 66,143.37 : x
  2. Step 2: Convert to fraction form
    122,263.72/183,448.38 = 66,143.37/x
  3. Step 3: Cross multiply
    122,263.72x = 183,448.38 × 66,143.37
  4. Step 4: Simplify right side
    122,263.72x = 12,133,893,289.06
  5. Step 5: Solve for x
    x = 12,133,893,289.06/122,263.72
  6. Step 6: Final answer
    x = 99,243.61

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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.