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Finding the Fourth Proportional to 120,420.88, 180,631.32 and 41,529.00

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Solution

The fourth proportional to 120,420.88, 180,631.32 and 41,529.00 is: 62,293.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,420.88 : 180,631.32 = 41,529.00 : x
  2. Step 2: Convert to fraction form
    120,420.88/180,631.32 = 41,529.00/x
  3. Step 3: Cross multiply
    120,420.88x = 180,631.32 × 41,529.00
  4. Step 4: Simplify right side
    120,420.88x = 7,501,438,609.91
  5. Step 5: Solve for x
    x = 7,501,438,609.91/120,420.88
  6. Step 6: Final answer
    x = 62,293.51

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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.