Home / 102,694.12-141,712.80-57,363.07

Finding the Fourth Proportional to 102,694.12, 141,712.80 and 57,363.07

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Solution

The fourth proportional to 102,694.12, 141,712.80 and 57,363.07 is: 79,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,694.12 : 141,712.80 = 57,363.07 : x
  2. Step 2: Convert to fraction form
    102,694.12/141,712.80 = 57,363.07/x
  3. Step 3: Cross multiply
    102,694.12x = 141,712.80 × 57,363.07
  4. Step 4: Simplify right side
    102,694.12x = 8,129,081,266.30
  5. Step 5: Solve for x
    x = 8,129,081,266.30/102,694.12
  6. Step 6: Final answer
    x = 79,158.20

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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.