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Finding the Fourth Proportional to 120,803.60, 181,291.80 and 50,733.20

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Solution

The fourth proportional to 120,803.60, 181,291.80 and 50,733.20 is: 76,136.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,803.60 : 181,291.80 = 50,733.20 : x
  2. Step 2: Convert to fraction form
    120,803.60/181,291.80 = 50,733.20/x
  3. Step 3: Cross multiply
    120,803.60x = 181,291.80 × 50,733.20
  4. Step 4: Simplify right side
    120,803.60x = 9,197,513,147.76
  5. Step 5: Solve for x
    x = 9,197,513,147.76/120,803.60
  6. Step 6: Final answer
    x = 76,136.08

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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.