Home / 141,808.45-195,696.96-78,148.51

Finding the Fourth Proportional to 141,808.45, 195,696.96 and 78,148.51

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Solution

The fourth proportional to 141,808.45, 195,696.96 and 78,148.51 is: 107,845.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,808.45 : 195,696.96 = 78,148.51 : x
  2. Step 2: Convert to fraction form
    141,808.45/195,696.96 = 78,148.51/x
  3. Step 3: Cross multiply
    141,808.45x = 195,696.96 × 78,148.51
  4. Step 4: Simplify right side
    141,808.45x = 15,293,425,835.53
  5. Step 5: Solve for x
    x = 15,293,425,835.53/141,808.45
  6. Step 6: Final answer
    x = 107,845.66

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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.