Home / 102,426.48-141,348.12-57,103.92

Finding the Fourth Proportional to 102,426.48, 141,348.12 and 57,103.92

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Solution

The fourth proportional to 102,426.48, 141,348.12 and 57,103.92 is: 78,803.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,426.48 : 141,348.12 = 57,103.92 : x
  2. Step 2: Convert to fraction form
    102,426.48/141,348.12 = 57,103.92/x
  3. Step 3: Cross multiply
    102,426.48x = 141,348.12 × 57,103.92
  4. Step 4: Simplify right side
    102,426.48x = 8,071,531,736.63
  5. Step 5: Solve for x
    x = 8,071,531,736.63/102,426.48
  6. Step 6: Final answer
    x = 78,803.17

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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.