Home / 102,857.36-141,956.28-57,537.86

Finding the Fourth Proportional to 102,857.36, 141,956.28 and 57,537.86

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Solution

The fourth proportional to 102,857.36, 141,956.28 and 57,537.86 is: 79,409.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,857.36 : 141,956.28 = 57,537.86 : x
  2. Step 2: Convert to fraction form
    102,857.36/141,956.28 = 57,537.86/x
  3. Step 3: Cross multiply
    102,857.36x = 141,956.28 × 57,537.86
  4. Step 4: Simplify right side
    102,857.36x = 8,167,859,854.98
  5. Step 5: Solve for x
    x = 8,167,859,854.98/102,857.36
  6. Step 6: Final answer
    x = 79,409.58

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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.