Home / 207,326.12-286,198.32-139,382.50

Finding the Fourth Proportional to 207,326.12, 286,198.32 and 139,382.50

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Solution

The fourth proportional to 207,326.12, 286,198.32 and 139,382.50 is: 192,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,326.12 : 286,198.32 = 139,382.50 : x
  2. Step 2: Convert to fraction form
    207,326.12/286,198.32 = 139,382.50/x
  3. Step 3: Cross multiply
    207,326.12x = 286,198.32 × 139,382.50
  4. Step 4: Simplify right side
    207,326.12x = 39,891,036,876.28
  5. Step 5: Solve for x
    x = 39,891,036,876.28/207,326.12
  6. Step 6: Final answer
    x = 192,407.20

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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.