Home / 188,513.12-260,151.68-103,630.08

Finding the Fourth Proportional to 188,513.12, 260,151.68 and 103,630.08

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Solution

The fourth proportional to 188,513.12, 260,151.68 and 103,630.08 is: 143,011.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,513.12 : 260,151.68 = 103,630.08 : x
  2. Step 2: Convert to fraction form
    188,513.12/260,151.68 = 103,630.08/x
  3. Step 3: Cross multiply
    188,513.12x = 260,151.68 × 103,630.08
  4. Step 4: Simplify right side
    188,513.12x = 26,959,539,410.53
  5. Step 5: Solve for x
    x = 26,959,539,410.53/188,513.12
  6. Step 6: Final answer
    x = 143,011.48

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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.