Home / 141,331.30-195,035-77,667.74

Finding the Fourth Proportional to 141,331.30, 195,035 and 77,667.74

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Solution

The fourth proportional to 141,331.30, 195,035 and 77,667.74 is: 107,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,331.30 : 195,035 = 77,667.74 : x
  2. Step 2: Convert to fraction form
    141,331.30/195,035 = 77,667.74/x
  3. Step 3: Cross multiply
    141,331.30x = 195,035 × 77,667.74
  4. Step 4: Simplify right side
    141,331.30x = 15,147,927,670.90
  5. Step 5: Solve for x
    x = 15,147,927,670.90/141,331.30
  6. Step 6: Final answer
    x = 107,180.28

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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.