Home / 211,059.76-291,249.12-115,567.60

Finding the Fourth Proportional to 211,059.76, 291,249.12 and 115,567.60

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Solution

The fourth proportional to 211,059.76, 291,249.12 and 115,567.60 is: 159,475.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,059.76 : 291,249.12 = 115,567.60 : x
  2. Step 2: Convert to fraction form
    211,059.76/291,249.12 = 115,567.60/x
  3. Step 3: Cross multiply
    211,059.76x = 291,249.12 × 115,567.60
  4. Step 4: Simplify right side
    211,059.76x = 33,658,961,800.51
  5. Step 5: Solve for x
    x = 33,658,961,800.51/211,059.76
  6. Step 6: Final answer
    x = 159,475.98

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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.