Home / 211,347.20-291,656.76-115,853.60

Finding the Fourth Proportional to 211,347.20, 291,656.76 and 115,853.60

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Solution

The fourth proportional to 211,347.20, 291,656.76 and 115,853.60 is: 159,876.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,347.20 : 291,656.76 = 115,853.60 : x
  2. Step 2: Convert to fraction form
    211,347.20/291,656.76 = 115,853.60/x
  3. Step 3: Cross multiply
    211,347.20x = 291,656.76 × 115,853.60
  4. Step 4: Simplify right side
    211,347.20x = 33,789,485,610.34
  5. Step 5: Solve for x
    x = 33,789,485,610.34/211,347.20
  6. Step 6: Final answer
    x = 159,876.67

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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.