Home / 141,399.50-195,132.63-77,737.75

Finding the Fourth Proportional to 141,399.50, 195,132.63 and 77,737.75

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Solution

The fourth proportional to 141,399.50, 195,132.63 and 77,737.75 is: 107,278.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,399.50 : 195,132.63 = 77,737.75 : x
  2. Step 2: Convert to fraction form
    141,399.50/195,132.63 = 77,737.75/x
  3. Step 3: Cross multiply
    141,399.50x = 195,132.63 × 77,737.75
  4. Step 4: Simplify right side
    141,399.50x = 15,169,171,607.78
  5. Step 5: Solve for x
    x = 15,169,171,607.78/141,399.50
  6. Step 6: Final answer
    x = 107,278.82

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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.