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Finding the Fourth Proportional to 122,505.30, 183,779.55 and 43,665.30

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Solution

The fourth proportional to 122,505.30, 183,779.55 and 43,665.30 is: 65,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,505.30 : 183,779.55 = 43,665.30 : x
  2. Step 2: Convert to fraction form
    122,505.30/183,779.55 = 43,665.30/x
  3. Step 3: Cross multiply
    122,505.30x = 183,779.55 × 43,665.30
  4. Step 4: Simplify right side
    122,505.30x = 8,024,789,184.62
  5. Step 5: Solve for x
    x = 8,024,789,184.62/122,505.30
  6. Step 6: Final answer
    x = 65,505.65

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1.5x scale

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.