Home / 122,705.10-184,057.65-121,830.30

Finding the Fourth Proportional to 122,705.10, 184,057.65 and 121,830.30

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Solution

The fourth proportional to 122,705.10, 184,057.65 and 121,830.30 is: 182,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,705.10 : 184,057.65 = 121,830.30 : x
  2. Step 2: Convert to fraction form
    122,705.10/184,057.65 = 121,830.30/x
  3. Step 3: Cross multiply
    122,705.10x = 184,057.65 × 121,830.30
  4. Step 4: Simplify right side
    122,705.10x = 22,423,798,716.80
  5. Step 5: Solve for x
    x = 22,423,798,716.80/122,705.10
  6. Step 6: Final answer
    x = 182,745.45

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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.