Home / 207,419.78-286,217.37-116,774.09

Finding the Fourth Proportional to 207,419.78, 286,217.37 and 116,774.09

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Solution

The fourth proportional to 207,419.78, 286,217.37 and 116,774.09 is: 161,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,419.78 : 286,217.37 = 116,774.09 : x
  2. Step 2: Convert to fraction form
    207,419.78/286,217.37 = 116,774.09/x
  3. Step 3: Cross multiply
    207,419.78x = 286,217.37 × 116,774.09
  4. Step 4: Simplify right side
    207,419.78x = 33,422,771,492.86
  5. Step 5: Solve for x
    x = 33,422,771,492.86/207,419.78
  6. Step 6: Final answer
    x = 161,135.90

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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.