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Finding the Fourth Proportional to 106,484.16, 146,942.10 and 66,196.89

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Solution

The fourth proportional to 106,484.16, 146,942.10 and 66,196.89 is: 91,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,484.16 : 146,942.10 = 66,196.89 : x
  2. Step 2: Convert to fraction form
    106,484.16/146,942.10 = 66,196.89/x
  3. Step 3: Cross multiply
    106,484.16x = 146,942.10 × 66,196.89
  4. Step 4: Simplify right side
    106,484.16x = 9,727,110,030.07
  5. Step 5: Solve for x
    x = 9,727,110,030.07/106,484.16
  6. Step 6: Final answer
    x = 91,347.95

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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.