Home / 141,670.50-195,500.70-78,006.66

Finding the Fourth Proportional to 141,670.50, 195,500.70 and 78,006.66

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Solution

The fourth proportional to 141,670.50, 195,500.70 and 78,006.66 is: 107,646.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,670.50 : 195,500.70 = 78,006.66 : x
  2. Step 2: Convert to fraction form
    141,670.50/195,500.70 = 78,006.66/x
  3. Step 3: Cross multiply
    141,670.50x = 195,500.70 × 78,006.66
  4. Step 4: Simplify right side
    141,670.50x = 15,250,356,634.66
  5. Step 5: Solve for x
    x = 15,250,356,634.66/141,670.50
  6. Step 6: Final answer
    x = 107,646.66

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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.