Home / 109,866.05-164,799.08-74,436.65

Finding the Fourth Proportional to 109,866.05, 164,799.08 and 74,436.65

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Solution

The fourth proportional to 109,866.05, 164,799.08 and 74,436.65 is: 111,654.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,866.05 : 164,799.08 = 74,436.65 : x
  2. Step 2: Convert to fraction form
    109,866.05/164,799.08 = 74,436.65/x
  3. Step 3: Cross multiply
    109,866.05x = 164,799.08 × 74,436.65
  4. Step 4: Simplify right side
    109,866.05x = 12,267,091,066.10
  5. Step 5: Solve for x
    x = 12,267,091,066.10/109,866.05
  6. Step 6: Final answer
    x = 111,654.98

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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.