Home / 102,857.43-141,956.40-57,537.93

Finding the Fourth Proportional to 102,857.43, 141,956.40 and 57,537.93

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Solution

The fourth proportional to 102,857.43, 141,956.40 and 57,537.93 is: 79,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,857.43 : 141,956.40 = 57,537.93 : x
  2. Step 2: Convert to fraction form
    102,857.43/141,956.40 = 57,537.93/x
  3. Step 3: Cross multiply
    102,857.43x = 141,956.40 × 57,537.93
  4. Step 4: Simplify right side
    102,857.43x = 8,167,877,406.25
  5. Step 5: Solve for x
    x = 8,167,877,406.25/102,857.43
  6. Step 6: Final answer
    x = 79,409.70

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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.