Home / 148,661.43-205,146.22-85,003.40

Finding the Fourth Proportional to 148,661.43, 205,146.22 and 85,003.40

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Solution

The fourth proportional to 148,661.43, 205,146.22 and 85,003.40 is: 117,300.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,661.43 : 205,146.22 = 85,003.40 : x
  2. Step 2: Convert to fraction form
    148,661.43/205,146.22 = 85,003.40/x
  3. Step 3: Cross multiply
    148,661.43x = 205,146.22 × 85,003.40
  4. Step 4: Simplify right side
    148,661.43x = 17,438,126,197.15
  5. Step 5: Solve for x
    x = 17,438,126,197.15/148,661.43
  6. Step 6: Final answer
    x = 117,300.94

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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.