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Finding the Fourth Proportional to 101,208.10, 151,569.15 and 54,357.70

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Solution

The fourth proportional to 101,208.10, 151,569.15 and 54,357.70 is: 81,406.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,208.10 : 151,569.15 = 54,357.70 : x
  2. Step 2: Convert to fraction form
    101,208.10/151,569.15 = 54,357.70/x
  3. Step 3: Cross multiply
    101,208.10x = 151,569.15 × 54,357.70
  4. Step 4: Simplify right side
    101,208.10x = 8,238,950,384.96
  5. Step 5: Solve for x
    x = 8,238,950,384.96/101,208.10
  6. Step 6: Final answer
    x = 81,406.04

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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.