Home / 116,943.36-161,381.52-66,642.72

Finding the Fourth Proportional to 116,943.36, 161,381.52 and 66,642.72

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Solution

The fourth proportional to 116,943.36, 161,381.52 and 66,642.72 is: 91,966.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,943.36 : 161,381.52 = 66,642.72 : x
  2. Step 2: Convert to fraction form
    116,943.36/161,381.52 = 66,642.72/x
  3. Step 3: Cross multiply
    116,943.36x = 161,381.52 × 66,642.72
  4. Step 4: Simplify right side
    116,943.36x = 10,754,903,450.53
  5. Step 5: Solve for x
    x = 10,754,903,450.53/116,943.36
  6. Step 6: Final answer
    x = 91,966.77

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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.