Home / 102,456.23-141,388.98-57,134.77

Finding the Fourth Proportional to 102,456.23, 141,388.98 and 57,134.77

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Solution

The fourth proportional to 102,456.23, 141,388.98 and 57,134.77 is: 78,845.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,456.23 : 141,388.98 = 57,134.77 : x
  2. Step 2: Convert to fraction form
    102,456.23/141,388.98 = 57,134.77/x
  3. Step 3: Cross multiply
    102,456.23x = 141,388.98 × 57,134.77
  4. Step 4: Simplify right side
    102,456.23x = 8,078,226,285.11
  5. Step 5: Solve for x
    x = 8,078,226,285.11/102,456.23
  6. Step 6: Final answer
    x = 78,845.64

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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.