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Finding the Fourth Proportional to 109,657, 151,326.66 and 59,356.36

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Solution

The fourth proportional to 109,657, 151,326.66 and 59,356.36 is: 81,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,657 : 151,326.66 = 59,356.36 : x
  2. Step 2: Convert to fraction form
    109,657/151,326.66 = 59,356.36/x
  3. Step 3: Cross multiply
    109,657x = 151,326.66 × 59,356.36
  4. Step 4: Simplify right side
    109,657x = 8,982,199,708.56
  5. Step 5: Solve for x
    x = 8,982,199,708.56/109,657
  6. Step 6: Final answer
    x = 81,911.78

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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.