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Finding the Fourth Proportional to 109,938, 151,714.48 and 62,190.32

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Solution

The fourth proportional to 109,938, 151,714.48 and 62,190.32 is: 85,822.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,938 : 151,714.48 = 62,190.32 : x
  2. Step 2: Convert to fraction form
    109,938/151,714.48 = 62,190.32/x
  3. Step 3: Cross multiply
    109,938x = 151,714.48 × 62,190.32
  4. Step 4: Simplify right side
    109,938x = 9,435,172,059.83
  5. Step 5: Solve for x
    x = 9,435,172,059.83/109,938
  6. Step 6: Final answer
    x = 85,822.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.