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Finding the Fourth Proportional to 141,394.92, 195,117.48 and 77,720.48

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Solution

The fourth proportional to 141,394.92, 195,117.48 and 77,720.48 is: 107,250.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,394.92 : 195,117.48 = 77,720.48 : x
  2. Step 2: Convert to fraction form
    141,394.92/195,117.48 = 77,720.48/x
  3. Step 3: Cross multiply
    141,394.92x = 195,117.48 × 77,720.48
  4. Step 4: Simplify right side
    141,394.92x = 15,164,624,201.99
  5. Step 5: Solve for x
    x = 15,164,624,201.99/141,394.92
  6. Step 6: Final answer
    x = 107,250.13

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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.