Home / 102,664.64-141,672.97-57,342.41

Finding the Fourth Proportional to 102,664.64, 141,672.97 and 57,342.41

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Solution

The fourth proportional to 102,664.64, 141,672.97 and 57,342.41 is: 79,130.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,664.64 : 141,672.97 = 57,342.41 : x
  2. Step 2: Convert to fraction form
    102,664.64/141,672.97 = 57,342.41/x
  3. Step 3: Cross multiply
    102,664.64x = 141,672.97 × 57,342.41
  4. Step 4: Simplify right side
    102,664.64x = 8,123,869,531.66
  5. Step 5: Solve for x
    x = 8,123,869,531.66/102,664.64
  6. Step 6: Final answer
    x = 79,130.16

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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.