Home / 122,977.40-184,466.10-100,815.80

Finding the Fourth Proportional to 122,977.40, 184,466.10 and 100,815.80

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Solution

The fourth proportional to 122,977.40, 184,466.10 and 100,815.80 is: 151,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,977.40 : 184,466.10 = 100,815.80 : x
  2. Step 2: Convert to fraction form
    122,977.40/184,466.10 = 100,815.80/x
  3. Step 3: Cross multiply
    122,977.40x = 184,466.10 × 100,815.80
  4. Step 4: Simplify right side
    122,977.40x = 18,597,097,444.38
  5. Step 5: Solve for x
    x = 18,597,097,444.38/122,977.40
  6. Step 6: Final answer
    x = 151,223.70

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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.