Home / 102,856.61-141,955.25-57,537.11

Finding the Fourth Proportional to 102,856.61, 141,955.25 and 57,537.11

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Solution

The fourth proportional to 102,856.61, 141,955.25 and 57,537.11 is: 79,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,856.61 : 141,955.25 = 57,537.11 : x
  2. Step 2: Convert to fraction form
    102,856.61/141,955.25 = 57,537.11/x
  3. Step 3: Cross multiply
    102,856.61x = 141,955.25 × 57,537.11
  4. Step 4: Simplify right side
    102,856.61x = 8,167,693,836.87
  5. Step 5: Solve for x
    x = 8,167,693,836.87/102,856.61
  6. Step 6: Final answer
    x = 79,408.55

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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.