Home / 211,140.59-291,301.62-120,431.27

Finding the Fourth Proportional to 211,140.59, 291,301.62 and 120,431.27

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Solution

The fourth proportional to 211,140.59, 291,301.62 and 120,431.27 is: 166,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,140.59 : 291,301.62 = 120,431.27 : x
  2. Step 2: Convert to fraction form
    211,140.59/291,301.62 = 120,431.27/x
  3. Step 3: Cross multiply
    211,140.59x = 291,301.62 × 120,431.27
  4. Step 4: Simplify right side
    211,140.59x = 35,081,824,326.29
  5. Step 5: Solve for x
    x = 35,081,824,326.29/211,140.59
  6. Step 6: Final answer
    x = 166,153.86

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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.