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Finding the Fourth Proportional to 120,782.60, 181,173.90 and 41,904.80

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Solution

The fourth proportional to 120,782.60, 181,173.90 and 41,904.80 is: 62,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,782.60 : 181,173.90 = 41,904.80 : x
  2. Step 2: Convert to fraction form
    120,782.60/181,173.90 = 41,904.80/x
  3. Step 3: Cross multiply
    120,782.60x = 181,173.90 × 41,904.80
  4. Step 4: Simplify right side
    120,782.60x = 7,592,056,044.72
  5. Step 5: Solve for x
    x = 7,592,056,044.72/120,782.60
  6. Step 6: Final answer
    x = 62,857.20

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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.