Home / 117,312.49-161,291.81-104,443.21

Finding the Fourth Proportional to 117,312.49, 161,291.81 and 104,443.21

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Solution

The fourth proportional to 117,312.49, 161,291.81 and 104,443.21 is: 143,597.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,312.49 : 161,291.81 = 104,443.21 : x
  2. Step 2: Convert to fraction form
    117,312.49/161,291.81 = 104,443.21/x
  3. Step 3: Cross multiply
    117,312.49x = 161,291.81 × 104,443.21
  4. Step 4: Simplify right side
    117,312.49x = 16,845,834,383.11
  5. Step 5: Solve for x
    x = 16,845,834,383.11/117,312.49
  6. Step 6: Final answer
    x = 143,597.96

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.