Home / 188,571.17-260,232.77-103,688.21

Finding the Fourth Proportional to 188,571.17, 260,232.77 and 103,688.21

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Solution

The fourth proportional to 188,571.17, 260,232.77 and 103,688.21 is: 143,092.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,571.17 : 260,232.77 = 103,688.21 : x
  2. Step 2: Convert to fraction form
    188,571.17/260,232.77 = 103,688.21/x
  3. Step 3: Cross multiply
    188,571.17x = 260,232.77 × 103,688.21
  4. Step 4: Simplify right side
    188,571.17x = 26,983,070,104.64
  5. Step 5: Solve for x
    x = 26,983,070,104.64/188,571.17
  6. Step 6: Final answer
    x = 143,092.23

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1.5x scale

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.