Home / 102,181.08-153,131.88-77,200.68

Finding the Fourth Proportional to 102,181.08, 153,131.88 and 77,200.68

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Solution

The fourth proportional to 102,181.08, 153,131.88 and 77,200.68 is: 115,695.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,181.08 : 153,131.88 = 77,200.68 : x
  2. Step 2: Convert to fraction form
    102,181.08/153,131.88 = 77,200.68/x
  3. Step 3: Cross multiply
    102,181.08x = 153,131.88 × 77,200.68
  4. Step 4: Simplify right side
    102,181.08x = 11,821,885,265.68
  5. Step 5: Solve for x
    x = 11,821,885,265.68/102,181.08
  6. Step 6: Final answer
    x = 115,695.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.