Home / 119,931.31-165,504.13-66,215.17

Finding the Fourth Proportional to 119,931.31, 165,504.13 and 66,215.17

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Solution

The fourth proportional to 119,931.31, 165,504.13 and 66,215.17 is: 91,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,931.31 : 165,504.13 = 66,215.17 : x
  2. Step 2: Convert to fraction form
    119,931.31/165,504.13 = 66,215.17/x
  3. Step 3: Cross multiply
    119,931.31x = 165,504.13 × 66,215.17
  4. Step 4: Simplify right side
    119,931.31x = 10,958,884,103.65
  5. Step 5: Solve for x
    x = 10,958,884,103.65/119,931.31
  6. Step 6: Final answer
    x = 91,376.34

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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.