Home / 141,898.14-195,820.76-78,238.20

Finding the Fourth Proportional to 141,898.14, 195,820.76 and 78,238.20

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Solution

The fourth proportional to 141,898.14, 195,820.76 and 78,238.20 is: 107,969.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,898.14 : 195,820.76 = 78,238.20 : x
  2. Step 2: Convert to fraction form
    141,898.14/195,820.76 = 78,238.20/x
  3. Step 3: Cross multiply
    141,898.14x = 195,820.76 × 78,238.20
  4. Step 4: Simplify right side
    141,898.14x = 15,320,663,393.84
  5. Step 5: Solve for x
    x = 15,320,663,393.84/141,898.14
  6. Step 6: Final answer
    x = 107,969.44

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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.