Home / 141,390.54-195,122.67-77,729.94

Finding the Fourth Proportional to 141,390.54, 195,122.67 and 77,729.94

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Solution

The fourth proportional to 141,390.54, 195,122.67 and 77,729.94 is: 107,269.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,390.54 : 195,122.67 = 77,729.94 : x
  2. Step 2: Convert to fraction form
    141,390.54/195,122.67 = 77,729.94/x
  3. Step 3: Cross multiply
    141,390.54x = 195,122.67 × 77,729.94
  4. Step 4: Simplify right side
    141,390.54x = 15,166,873,431.74
  5. Step 5: Solve for x
    x = 15,166,873,431.74/141,390.54
  6. Step 6: Final answer
    x = 107,269.36

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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.