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Finding the Fourth Proportional to 157,092.98, 216,781.82 and 85,473.28

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Solution

The fourth proportional to 157,092.98, 216,781.82 and 85,473.28 is: 117,949.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,092.98 : 216,781.82 = 85,473.28 : x
  2. Step 2: Convert to fraction form
    157,092.98/216,781.82 = 85,473.28/x
  3. Step 3: Cross multiply
    157,092.98x = 216,781.82 × 85,473.28
  4. Step 4: Simplify right side
    157,092.98x = 18,529,053,199.77
  5. Step 5: Solve for x
    x = 18,529,053,199.77/157,092.98
  6. Step 6: Final answer
    x = 117,949.59

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