Home / 102,618.83-141,612.62-57,297.58

Finding the Fourth Proportional to 102,618.83, 141,612.62 and 57,297.58

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Solution

The fourth proportional to 102,618.83, 141,612.62 and 57,297.58 is: 79,069.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,618.83 : 141,612.62 = 57,297.58 : x
  2. Step 2: Convert to fraction form
    102,618.83/141,612.62 = 57,297.58/x
  3. Step 3: Cross multiply
    102,618.83x = 141,612.62 × 57,297.58
  4. Step 4: Simplify right side
    102,618.83x = 8,114,059,782.94
  5. Step 5: Solve for x
    x = 8,114,059,782.94/102,618.83
  6. Step 6: Final answer
    x = 79,069.89

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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.