Home / 211,808.75-292,296.87-115,012.73

Finding the Fourth Proportional to 211,808.75, 292,296.87 and 115,012.73

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Solution

The fourth proportional to 211,808.75, 292,296.87 and 115,012.73 is: 158,718.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,808.75 : 292,296.87 = 115,012.73 : x
  2. Step 2: Convert to fraction form
    211,808.75/292,296.87 = 115,012.73/x
  3. Step 3: Cross multiply
    211,808.75x = 292,296.87 × 115,012.73
  4. Step 4: Simplify right side
    211,808.75x = 33,617,860,989.16
  5. Step 5: Solve for x
    x = 33,617,860,989.16/211,808.75
  6. Step 6: Final answer
    x = 158,718.00

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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.