Home / 116,974.16-161,233.95-91,435.47

Finding the Fourth Proportional to 116,974.16, 161,233.95 and 91,435.47

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Solution

The fourth proportional to 116,974.16, 161,233.95 and 91,435.47 is: 126,032.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,974.16 : 161,233.95 = 91,435.47 : x
  2. Step 2: Convert to fraction form
    116,974.16/161,233.95 = 91,435.47/x
  3. Step 3: Cross multiply
    116,974.16x = 161,233.95 × 91,435.47
  4. Step 4: Simplify right side
    116,974.16x = 14,742,501,541.03
  5. Step 5: Solve for x
    x = 14,742,501,541.03/116,974.16
  6. Step 6: Final answer
    x = 126,032.12

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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.