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Finding the Fourth Proportional to 122,569.30, 183,723.15 and 69,865.30

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Solution

The fourth proportional to 122,569.30, 183,723.15 and 69,865.30 is: 104,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,569.30 : 183,723.15 = 69,865.30 : x
  2. Step 2: Convert to fraction form
    122,569.30/183,723.15 = 69,865.30/x
  3. Step 3: Cross multiply
    122,569.30x = 183,723.15 × 69,865.30
  4. Step 4: Simplify right side
    122,569.30x = 12,835,872,991.70
  5. Step 5: Solve for x
    x = 12,835,872,991.70/122,569.30
  6. Step 6: Final answer
    x = 104,723.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.