Home / 119,880.49-165,434.75-66,165.14

Finding the Fourth Proportional to 119,880.49, 165,434.75 and 66,165.14

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Solution

The fourth proportional to 119,880.49, 165,434.75 and 66,165.14 is: 91,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,880.49 : 165,434.75 = 66,165.14 : x
  2. Step 2: Convert to fraction form
    119,880.49/165,434.75 = 66,165.14/x
  3. Step 3: Cross multiply
    119,880.49x = 165,434.75 × 66,165.14
  4. Step 4: Simplify right side
    119,880.49x = 10,946,013,394.62
  5. Step 5: Solve for x
    x = 10,946,013,394.62/119,880.49
  6. Step 6: Final answer
    x = 91,307.71

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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.