Home / 102,656.25-141,651.63-57,328.44

Finding the Fourth Proportional to 102,656.25, 141,651.63 and 57,328.44

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Solution

The fourth proportional to 102,656.25, 141,651.63 and 57,328.44 is: 79,105.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,656.25 : 141,651.63 = 57,328.44 : x
  2. Step 2: Convert to fraction form
    102,656.25/141,651.63 = 57,328.44/x
  3. Step 3: Cross multiply
    102,656.25x = 141,651.63 × 57,328.44
  4. Step 4: Simplify right side
    102,656.25x = 8,120,666,971.36
  5. Step 5: Solve for x
    x = 8,120,666,971.36/102,656.25
  6. Step 6: Final answer
    x = 79,105.43

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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.