Home / 211,008.12-291,196.32-115,514.52

Finding the Fourth Proportional to 211,008.12, 291,196.32 and 115,514.52

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Solution

The fourth proportional to 211,008.12, 291,196.32 and 115,514.52 is: 159,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,008.12 : 291,196.32 = 115,514.52 : x
  2. Step 2: Convert to fraction form
    211,008.12/291,196.32 = 115,514.52/x
  3. Step 3: Cross multiply
    211,008.12x = 291,196.32 × 115,514.52
  4. Step 4: Simplify right side
    211,008.12x = 33,637,403,130.57
  5. Step 5: Solve for x
    x = 33,637,403,130.57/211,008.12
  6. Step 6: Final answer
    x = 159,412.84

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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.