Home / 211,006.89-291,189.02-115,512.75

Finding the Fourth Proportional to 211,006.89, 291,189.02 and 115,512.75

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Solution

The fourth proportional to 211,006.89, 291,189.02 and 115,512.75 is: 159,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,006.89 : 291,189.02 = 115,512.75 : x
  2. Step 2: Convert to fraction form
    211,006.89/291,189.02 = 115,512.75/x
  3. Step 3: Cross multiply
    211,006.89x = 291,189.02 × 115,512.75
  4. Step 4: Simplify right side
    211,006.89x = 33,636,044,470.01
  5. Step 5: Solve for x
    x = 33,636,044,470.01/211,006.89
  6. Step 6: Final answer
    x = 159,407.33

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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.