Home / 116,988.74-161,464.31-66,015.92

Finding the Fourth Proportional to 116,988.74, 161,464.31 and 66,015.92

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Solution

The fourth proportional to 116,988.74, 161,464.31 and 66,015.92 is: 91,113.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,988.74 : 161,464.31 = 66,015.92 : x
  2. Step 2: Convert to fraction form
    116,988.74/161,464.31 = 66,015.92/x
  3. Step 3: Cross multiply
    116,988.74x = 161,464.31 × 66,015.92
  4. Step 4: Simplify right side
    116,988.74x = 10,659,214,971.82
  5. Step 5: Solve for x
    x = 10,659,214,971.82/116,988.74
  6. Step 6: Final answer
    x = 91,113.17

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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.