Home / 211,007.61-291,195.63-115,514.01

Finding the Fourth Proportional to 211,007.61, 291,195.63 and 115,514.01

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Solution

The fourth proportional to 211,007.61, 291,195.63 and 115,514.01 is: 159,412.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,007.61 : 291,195.63 = 115,514.01 : x
  2. Step 2: Convert to fraction form
    211,007.61/291,195.63 = 115,514.01/x
  3. Step 3: Cross multiply
    211,007.61x = 291,195.63 × 115,514.01
  4. Step 4: Simplify right side
    211,007.61x = 33,637,174,915.78
  5. Step 5: Solve for x
    x = 33,637,174,915.78/211,007.61
  6. Step 6: Final answer
    x = 159,412.14

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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.