Home / 188,539.42-260,185.05-103,661.86

Finding the Fourth Proportional to 188,539.42, 260,185.05 and 103,661.86

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Solution

The fourth proportional to 188,539.42, 260,185.05 and 103,661.86 is: 143,053.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,539.42 : 260,185.05 = 103,661.86 : x
  2. Step 2: Convert to fraction form
    188,539.42/260,185.05 = 103,661.86/x
  3. Step 3: Cross multiply
    188,539.42x = 260,185.05 × 103,661.86
  4. Step 4: Simplify right side
    188,539.42x = 26,971,266,227.19
  5. Step 5: Solve for x
    x = 26,971,266,227.19/188,539.42
  6. Step 6: Final answer
    x = 143,053.72

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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.