Home / 110,869.78-166,345.97-66,528.35

Finding the Fourth Proportional to 110,869.78, 166,345.97 and 66,528.35

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Solution

The fourth proportional to 110,869.78, 166,345.97 and 66,528.35 is: 99,817.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,869.78 : 166,345.97 = 66,528.35 : x
  2. Step 2: Convert to fraction form
    110,869.78/166,345.97 = 66,528.35/x
  3. Step 3: Cross multiply
    110,869.78x = 166,345.97 × 66,528.35
  4. Step 4: Simplify right side
    110,869.78x = 11,066,722,580.61
  5. Step 5: Solve for x
    x = 11,066,722,580.61/110,869.78
  6. Step 6: Final answer
    x = 99,817.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.