Home / 124,503.78-171,812.43-67,917.18

Finding the Fourth Proportional to 124,503.78, 171,812.43 and 67,917.18

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Solution

The fourth proportional to 124,503.78, 171,812.43 and 67,917.18 is: 93,724.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,503.78 : 171,812.43 = 67,917.18 : x
  2. Step 2: Convert to fraction form
    124,503.78/171,812.43 = 67,917.18/x
  3. Step 3: Cross multiply
    124,503.78x = 171,812.43 × 67,917.18
  4. Step 4: Simplify right side
    124,503.78x = 11,669,015,734.55
  5. Step 5: Solve for x
    x = 11,669,015,734.55/124,503.78
  6. Step 6: Final answer
    x = 93,724.19

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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.