Home / 211,113.83-291,357.88-120,483.43

Finding the Fourth Proportional to 211,113.83, 291,357.88 and 120,483.43

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Solution

The fourth proportional to 211,113.83, 291,357.88 and 120,483.43 is: 166,279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,113.83 : 291,357.88 = 120,483.43 : x
  2. Step 2: Convert to fraction form
    211,113.83/291,357.88 = 120,483.43/x
  3. Step 3: Cross multiply
    211,113.83x = 291,357.88 × 120,483.43
  4. Step 4: Simplify right side
    211,113.83x = 35,103,795,710.33
  5. Step 5: Solve for x
    x = 35,103,795,710.33/211,113.83
  6. Step 6: Final answer
    x = 166,279.00

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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.