Home / 188,646.09-260,326.17-103,763.15

Finding the Fourth Proportional to 188,646.09, 260,326.17 and 103,763.15

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Solution

The fourth proportional to 188,646.09, 260,326.17 and 103,763.15 is: 143,190.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,646.09 : 260,326.17 = 103,763.15 : x
  2. Step 2: Convert to fraction form
    188,646.09/260,326.17 = 103,763.15/x
  3. Step 3: Cross multiply
    188,646.09x = 260,326.17 × 103,763.15
  4. Step 4: Simplify right side
    188,646.09x = 27,012,263,426.64
  5. Step 5: Solve for x
    x = 27,012,263,426.64/188,646.09
  6. Step 6: Final answer
    x = 143,190.16

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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.