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Finding the Fourth Proportional to 122,360.31, 183,467.57 and 42,372

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Solution

The fourth proportional to 122,360.31, 183,467.57 and 42,372 is: 63,532.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,360.31 : 183,467.57 = 42,372 : x
  2. Step 2: Convert to fraction form
    122,360.31/183,467.57 = 42,372/x
  3. Step 3: Cross multiply
    122,360.31x = 183,467.57 × 42,372
  4. Step 4: Simplify right side
    122,360.31x = 7,773,887,664.18
  5. Step 5: Solve for x
    x = 7,773,887,664.18/122,360.31
  6. Step 6: Final answer
    x = 63,532.76

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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.