Home / 141,431.30-195,126.63-87,696.98

Finding the Fourth Proportional to 141,431.30, 195,126.63 and 87,696.98

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Solution

The fourth proportional to 141,431.30, 195,126.63 and 87,696.98 is: 120,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,431.30 : 195,126.63 = 87,696.98 : x
  2. Step 2: Convert to fraction form
    141,431.30/195,126.63 = 87,696.98/x
  3. Step 3: Cross multiply
    141,431.30x = 195,126.63 × 87,696.98
  4. Step 4: Simplify right side
    141,431.30x = 17,112,016,168.58
  5. Step 5: Solve for x
    x = 17,112,016,168.58/141,431.30
  6. Step 6: Final answer
    x = 120,991.72

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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.