Home / 111,934.49-154,466.03-66,602.10

Finding the Fourth Proportional to 111,934.49, 154,466.03 and 66,602.10

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Solution

The fourth proportional to 111,934.49, 154,466.03 and 66,602.10 is: 91,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,934.49 : 154,466.03 = 66,602.10 : x
  2. Step 2: Convert to fraction form
    111,934.49/154,466.03 = 66,602.10/x
  3. Step 3: Cross multiply
    111,934.49x = 154,466.03 × 66,602.10
  4. Step 4: Simplify right side
    111,934.49x = 10,287,761,976.66
  5. Step 5: Solve for x
    x = 10,287,761,976.66/111,934.49
  6. Step 6: Final answer
    x = 91,908.78

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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.