Home / 102,928.22-154,376.55-28,054.40

Finding the Fourth Proportional to 102,928.22, 154,376.55 and 28,054.40

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Solution

The fourth proportional to 102,928.22, 154,376.55 and 28,054.40 is: 42,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,928.22 : 154,376.55 = 28,054.40 : x
  2. Step 2: Convert to fraction form
    102,928.22/154,376.55 = 28,054.40/x
  3. Step 3: Cross multiply
    102,928.22x = 154,376.55 × 28,054.40
  4. Step 4: Simplify right side
    102,928.22x = 4,330,940,712.44
  5. Step 5: Solve for x
    x = 4,330,940,712.44/102,928.22
  6. Step 6: Final answer
    x = 42,077.29

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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.