Home / 116,974.89-161,235.77-91,436.13

Finding the Fourth Proportional to 116,974.89, 161,235.77 and 91,436.13

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Solution

The fourth proportional to 116,974.89, 161,235.77 and 91,436.13 is: 126,033.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,974.89 : 161,235.77 = 91,436.13 : x
  2. Step 2: Convert to fraction form
    116,974.89/161,235.77 = 91,436.13/x
  3. Step 3: Cross multiply
    116,974.89x = 161,235.77 × 91,436.13
  4. Step 4: Simplify right side
    116,974.89x = 14,742,774,369.19
  5. Step 5: Solve for x
    x = 14,742,774,369.19/116,974.89
  6. Step 6: Final answer
    x = 126,033.67

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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.