Home / 211,085.64-291,301.56-115,590.66

Finding the Fourth Proportional to 211,085.64, 291,301.56 and 115,590.66

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Solution

The fourth proportional to 211,085.64, 291,301.56 and 115,590.66 is: 159,516.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,085.64 : 291,301.56 = 115,590.66 : x
  2. Step 2: Convert to fraction form
    211,085.64/291,301.56 = 115,590.66/x
  3. Step 3: Cross multiply
    211,085.64x = 291,301.56 × 115,590.66
  4. Step 4: Simplify right side
    211,085.64x = 33,671,739,579.43
  5. Step 5: Solve for x
    x = 33,671,739,579.43/211,085.64
  6. Step 6: Final answer
    x = 159,516.96

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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.