Home / 102,461.53-141,397.73-57,142.43

Finding the Fourth Proportional to 102,461.53, 141,397.73 and 57,142.43

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Solution

The fourth proportional to 102,461.53, 141,397.73 and 57,142.43 is: 78,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,461.53 : 141,397.73 = 57,142.43 : x
  2. Step 2: Convert to fraction form
    102,461.53/141,397.73 = 57,142.43/x
  3. Step 3: Cross multiply
    102,461.53x = 141,397.73 × 57,142.43
  4. Step 4: Simplify right side
    102,461.53x = 8,079,810,170.75
  5. Step 5: Solve for x
    x = 8,079,810,170.75/102,461.53
  6. Step 6: Final answer
    x = 78,857.01

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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.