Home / 102,899.01-154,357.74-28,019.55

Finding the Fourth Proportional to 102,899.01, 154,357.74 and 28,019.55

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Solution

The fourth proportional to 102,899.01, 154,357.74 and 28,019.55 is: 42,031.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,899.01 : 154,357.74 = 28,019.55 : x
  2. Step 2: Convert to fraction form
    102,899.01/154,357.74 = 28,019.55/x
  3. Step 3: Cross multiply
    102,899.01x = 154,357.74 × 28,019.55
  4. Step 4: Simplify right side
    102,899.01x = 4,325,034,413.82
  5. Step 5: Solve for x
    x = 4,325,034,413.82/102,899.01
  6. Step 6: Final answer
    x = 42,031.84

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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.