Home / 102,424.48-141,345.36-57,101.92

Finding the Fourth Proportional to 102,424.48, 141,345.36 and 57,101.92

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Solution

The fourth proportional to 102,424.48, 141,345.36 and 57,101.92 is: 78,800.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,424.48 : 141,345.36 = 57,101.92 : x
  2. Step 2: Convert to fraction form
    102,424.48/141,345.36 = 57,101.92/x
  3. Step 3: Cross multiply
    102,424.48x = 141,345.36 × 57,101.92
  4. Step 4: Simplify right side
    102,424.48x = 8,071,091,439.09
  5. Step 5: Solve for x
    x = 8,071,091,439.09/102,424.48
  6. Step 6: Final answer
    x = 78,800.41

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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.