Home / 188,268.63-259,812.53-103,387.51

Finding the Fourth Proportional to 188,268.63, 259,812.53 and 103,387.51

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Solution

The fourth proportional to 188,268.63, 259,812.53 and 103,387.51 is: 142,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,268.63 : 259,812.53 = 103,387.51 : x
  2. Step 2: Convert to fraction form
    188,268.63/259,812.53 = 103,387.51/x
  3. Step 3: Cross multiply
    188,268.63x = 259,812.53 × 103,387.51
  4. Step 4: Simplify right side
    188,268.63x = 26,861,370,543.50
  5. Step 5: Solve for x
    x = 26,861,370,543.50/188,268.63
  6. Step 6: Final answer
    x = 142,675.76

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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.