Home / 102,384.10-141,288.60-57,063.79

Finding the Fourth Proportional to 102,384.10, 141,288.60 and 57,063.79

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Solution

The fourth proportional to 102,384.10, 141,288.60 and 57,063.79 is: 78,747.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,384.10 : 141,288.60 = 57,063.79 : x
  2. Step 2: Convert to fraction form
    102,384.10/141,288.60 = 57,063.79/x
  3. Step 3: Cross multiply
    102,384.10x = 141,288.60 × 57,063.79
  4. Step 4: Simplify right side
    102,384.10x = 8,062,462,999.79
  5. Step 5: Solve for x
    x = 8,062,462,999.79/102,384.10
  6. Step 6: Final answer
    x = 78,747.22

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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.