Home / 141,533.88-195,319.78-77,871.86

Finding the Fourth Proportional to 141,533.88, 195,319.78 and 77,871.86

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Solution

The fourth proportional to 141,533.88, 195,319.78 and 77,871.86 is: 107,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,533.88 : 195,319.78 = 77,871.86 : x
  2. Step 2: Convert to fraction form
    141,533.88/195,319.78 = 77,871.86/x
  3. Step 3: Cross multiply
    141,533.88x = 195,319.78 × 77,871.86
  4. Step 4: Simplify right side
    141,533.88x = 15,209,914,563.39
  5. Step 5: Solve for x
    x = 15,209,914,563.39/141,533.88
  6. Step 6: Final answer
    x = 107,464.83

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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.