Home / 141,688.78-195,536.56-81,276.46

Finding the Fourth Proportional to 141,688.78, 195,536.56 and 81,276.46

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Solution

The fourth proportional to 141,688.78, 195,536.56 and 81,276.46 is: 112,164.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,688.78 : 195,536.56 = 81,276.46 : x
  2. Step 2: Convert to fraction form
    141,688.78/195,536.56 = 81,276.46/x
  3. Step 3: Cross multiply
    141,688.78x = 195,536.56 × 81,276.46
  4. Step 4: Simplify right side
    141,688.78x = 15,892,519,397.38
  5. Step 5: Solve for x
    x = 15,892,519,397.38/141,688.78
  6. Step 6: Final answer
    x = 112,164.98

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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.