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Finding the Fourth Proportional to 154,159.17, 212,773.95 and 93,717

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Solution

The fourth proportional to 154,159.17, 212,773.95 and 93,717 is: 129,350.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,159.17 : 212,773.95 = 93,717 : x
  2. Step 2: Convert to fraction form
    154,159.17/212,773.95 = 93,717/x
  3. Step 3: Cross multiply
    154,159.17x = 212,773.95 × 93,717
  4. Step 4: Simplify right side
    154,159.17x = 19,940,536,272.15
  5. Step 5: Solve for x
    x = 19,940,536,272.15/154,159.17
  6. Step 6: Final answer
    x = 129,350.31

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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.