Home / 117,073.86-161,427.26-86,491.22

Finding the Fourth Proportional to 117,073.86, 161,427.26 and 86,491.22

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Solution

The fourth proportional to 117,073.86, 161,427.26 and 86,491.22 is: 119,258.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,073.86 : 161,427.26 = 86,491.22 : x
  2. Step 2: Convert to fraction form
    117,073.86/161,427.26 = 86,491.22/x
  3. Step 3: Cross multiply
    117,073.86x = 161,427.26 × 86,491.22
  4. Step 4: Simplify right side
    117,073.86x = 13,962,039,419.06
  5. Step 5: Solve for x
    x = 13,962,039,419.06/117,073.86
  6. Step 6: Final answer
    x = 119,258.38

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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.