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Finding the Fourth Proportional to 148,297.79, 204,659.91 and 90,943.71

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Solution

The fourth proportional to 148,297.79, 204,659.91 and 90,943.71 is: 125,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,297.79 : 204,659.91 = 90,943.71 : x
  2. Step 2: Convert to fraction form
    148,297.79/204,659.91 = 90,943.71/x
  3. Step 3: Cross multiply
    148,297.79x = 204,659.91 × 90,943.71
  4. Step 4: Simplify right side
    148,297.79x = 18,612,531,503.67
  5. Step 5: Solve for x
    x = 18,612,531,503.67/148,297.79
  6. Step 6: Final answer
    x = 125,507.82

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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.