Home / 110,681.74-166,135.61-81,011.44

Finding the Fourth Proportional to 110,681.74, 166,135.61 and 81,011.44

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Solution

The fourth proportional to 110,681.74, 166,135.61 and 81,011.44 is: 121,599.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,681.74 : 166,135.61 = 81,011.44 : x
  2. Step 2: Convert to fraction form
    110,681.74/166,135.61 = 81,011.44/x
  3. Step 3: Cross multiply
    110,681.74x = 166,135.61 × 81,011.44
  4. Step 4: Simplify right side
    110,681.74x = 13,458,885,001.38
  5. Step 5: Solve for x
    x = 13,458,885,001.38/110,681.74
  6. Step 6: Final answer
    x = 121,599.87

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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.