Home / 207,811.88-286,774.65-117,167.05

Finding the Fourth Proportional to 207,811.88, 286,774.65 and 117,167.05

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Solution

The fourth proportional to 207,811.88, 286,774.65 and 117,167.05 is: 161,687.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,811.88 : 286,774.65 = 117,167.05 : x
  2. Step 2: Convert to fraction form
    207,811.88/286,774.65 = 117,167.05/x
  3. Step 3: Cross multiply
    207,811.88x = 286,774.65 × 117,167.05
  4. Step 4: Simplify right side
    207,811.88x = 33,600,539,755.28
  5. Step 5: Solve for x
    x = 33,600,539,755.28/207,811.88
  6. Step 6: Final answer
    x = 161,687.29

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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.