Home / 207,961.48-286,989.63-117,317.17

Finding the Fourth Proportional to 207,961.48, 286,989.63 and 117,317.17

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Solution

The fourth proportional to 207,961.48, 286,989.63 and 117,317.17 is: 161,899.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,961.48 : 286,989.63 = 117,317.17 : x
  2. Step 2: Convert to fraction form
    207,961.48/286,989.63 = 117,317.17/x
  3. Step 3: Cross multiply
    207,961.48x = 286,989.63 × 117,317.17
  4. Step 4: Simplify right side
    207,961.48x = 33,668,810,786.77
  5. Step 5: Solve for x
    x = 33,668,810,786.77/207,961.48
  6. Step 6: Final answer
    x = 161,899.26

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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.