Home / 188,713.09-260,420.43-103,830.22

Finding the Fourth Proportional to 188,713.09, 260,420.43 and 103,830.22

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Solution

The fourth proportional to 188,713.09, 260,420.43 and 103,830.22 is: 143,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,713.09 : 260,420.43 = 103,830.22 : x
  2. Step 2: Convert to fraction form
    188,713.09/260,420.43 = 103,830.22/x
  3. Step 3: Cross multiply
    188,713.09x = 260,420.43 × 103,830.22
  4. Step 4: Simplify right side
    188,713.09x = 27,039,510,539.39
  5. Step 5: Solve for x
    x = 27,039,510,539.39/188,713.09
  6. Step 6: Final answer
    x = 143,283.70

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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.