Home / 141,313.35-195,010.20-77,649.78

Finding the Fourth Proportional to 141,313.35, 195,010.20 and 77,649.78

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Solution

The fourth proportional to 141,313.35, 195,010.20 and 77,649.78 is: 107,155.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,313.35 : 195,010.20 = 77,649.78 : x
  2. Step 2: Convert to fraction form
    141,313.35/195,010.20 = 77,649.78/x
  3. Step 3: Cross multiply
    141,313.35x = 195,010.20 × 77,649.78
  4. Step 4: Simplify right side
    141,313.35x = 15,142,498,152.71
  5. Step 5: Solve for x
    x = 15,142,498,152.71/141,313.35
  6. Step 6: Final answer
    x = 107,155.47

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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.