Home / 122,138.95-183,208.83-43,255.48

Finding the Fourth Proportional to 122,138.95, 183,208.83 and 43,255.48

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Solution

The fourth proportional to 122,138.95, 183,208.83 and 43,255.48 is: 64,883.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,138.95 : 183,208.83 = 43,255.48 : x
  2. Step 2: Convert to fraction form
    122,138.95/183,208.83 = 43,255.48/x
  3. Step 3: Cross multiply
    122,138.95x = 183,208.83 × 43,255.48
  4. Step 4: Simplify right side
    122,138.95x = 7,924,785,881.89
  5. Step 5: Solve for x
    x = 7,924,785,881.89/122,138.95
  6. Step 6: Final answer
    x = 64,883.36

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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.