Home / 211,086.96-291,306.60-115,602.72

Finding the Fourth Proportional to 211,086.96, 291,306.60 and 115,602.72

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Solution

The fourth proportional to 211,086.96, 291,306.60 and 115,602.72 is: 159,535.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,086.96 : 291,306.60 = 115,602.72 : x
  2. Step 2: Convert to fraction form
    211,086.96/291,306.60 = 115,602.72/x
  3. Step 3: Cross multiply
    211,086.96x = 291,306.60 × 115,602.72
  4. Step 4: Simplify right side
    211,086.96x = 33,675,835,313.95
  5. Step 5: Solve for x
    x = 33,675,835,313.95/211,086.96
  6. Step 6: Final answer
    x = 159,535.37

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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.