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Finding the Fourth Proportional to 141,323.96, 195,024.66 and 77,661.68

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Solution

The fourth proportional to 141,323.96, 195,024.66 and 77,661.68 is: 107,171.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,323.96 : 195,024.66 = 77,661.68 : x
  2. Step 2: Convert to fraction form
    141,323.96/195,024.66 = 77,661.68/x
  3. Step 3: Cross multiply
    141,323.96x = 195,024.66 × 77,661.68
  4. Step 4: Simplify right side
    141,323.96x = 15,145,942,737.03
  5. Step 5: Solve for x
    x = 15,145,942,737.03/141,323.96
  6. Step 6: Final answer
    x = 107,171.80

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1.5x scale

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.