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Finding the Fourth Proportional to 124,378.35, 171,506.61 and 84,022.08

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Solution

The fourth proportional to 124,378.35, 171,506.61 and 84,022.08 is: 115,858.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,378.35 : 171,506.61 = 84,022.08 : x
  2. Step 2: Convert to fraction form
    124,378.35/171,506.61 = 84,022.08/x
  3. Step 3: Cross multiply
    124,378.35x = 171,506.61 × 84,022.08
  4. Step 4: Simplify right side
    124,378.35x = 14,410,342,105.95
  5. Step 5: Solve for x
    x = 14,410,342,105.95/124,378.35
  6. Step 6: Final answer
    x = 115,858.93

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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.