Home / 141,807.30-195,698.26-78,149.20

Finding the Fourth Proportional to 141,807.30, 195,698.26 and 78,149.20

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Solution

The fourth proportional to 141,807.30, 195,698.26 and 78,149.20 is: 107,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,807.30 : 195,698.26 = 78,149.20 : x
  2. Step 2: Convert to fraction form
    141,807.30/195,698.26 = 78,149.20/x
  3. Step 3: Cross multiply
    141,807.30x = 195,698.26 × 78,149.20
  4. Step 4: Simplify right side
    141,807.30x = 15,293,662,460.39
  5. Step 5: Solve for x
    x = 15,293,662,460.39/141,807.30
  6. Step 6: Final answer
    x = 107,848.20

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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.