Home / 141,451.69-195,199.44-77,789.49

Finding the Fourth Proportional to 141,451.69, 195,199.44 and 77,789.49

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Solution

The fourth proportional to 141,451.69, 195,199.44 and 77,789.49 is: 107,347.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,451.69 : 195,199.44 = 77,789.49 : x
  2. Step 2: Convert to fraction form
    141,451.69/195,199.44 = 77,789.49/x
  3. Step 3: Cross multiply
    141,451.69x = 195,199.44 × 77,789.49
  4. Step 4: Simplify right side
    141,451.69x = 15,184,464,885.89
  5. Step 5: Solve for x
    x = 15,184,464,885.89/141,451.69
  6. Step 6: Final answer
    x = 107,347.36

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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.