Home / 122,947.90-184,421.85-109,815.10

Finding the Fourth Proportional to 122,947.90, 184,421.85 and 109,815.10

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Solution

The fourth proportional to 122,947.90, 184,421.85 and 109,815.10 is: 164,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,947.90 : 184,421.85 = 109,815.10 : x
  2. Step 2: Convert to fraction form
    122,947.90/184,421.85 = 109,815.10/x
  3. Step 3: Cross multiply
    122,947.90x = 184,421.85 × 109,815.10
  4. Step 4: Simplify right side
    122,947.90x = 20,252,303,899.94
  5. Step 5: Solve for x
    x = 20,252,303,899.94/122,947.90
  6. Step 6: Final answer
    x = 164,722.65

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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.