Home / 205,657.30-283,805.05-115,012.22

Finding the Fourth Proportional to 205,657.30, 283,805.05 and 115,012.22

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Solution

The fourth proportional to 205,657.30, 283,805.05 and 115,012.22 is: 158,715.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,657.30 : 283,805.05 = 115,012.22 : x
  2. Step 2: Convert to fraction form
    205,657.30/283,805.05 = 115,012.22/x
  3. Step 3: Cross multiply
    205,657.30x = 283,805.05 × 115,012.22
  4. Step 4: Simplify right side
    205,657.30x = 32,641,048,847.71
  5. Step 5: Solve for x
    x = 32,641,048,847.71/205,657.30
  6. Step 6: Final answer
    x = 158,715.73

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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.