Home / 141,731.69-195,583.25-81,298.53

Finding the Fourth Proportional to 141,731.69, 195,583.25 and 81,298.53

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Solution

The fourth proportional to 141,731.69, 195,583.25 and 81,298.53 is: 112,188.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,731.69 : 195,583.25 = 81,298.53 : x
  2. Step 2: Convert to fraction form
    141,731.69/195,583.25 = 81,298.53/x
  3. Step 3: Cross multiply
    141,731.69x = 195,583.25 × 81,298.53
  4. Step 4: Simplify right side
    141,731.69x = 15,900,630,717.62
  5. Step 5: Solve for x
    x = 15,900,630,717.62/141,731.69
  6. Step 6: Final answer
    x = 112,188.25

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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.