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Finding the Fourth Proportional to 120,817.60, 181,269.60 and 50,718.40

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Solution

The fourth proportional to 120,817.60, 181,269.60 and 50,718.40 is: 76,095.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,817.60 : 181,269.60 = 50,718.40 : x
  2. Step 2: Convert to fraction form
    120,817.60/181,269.60 = 50,718.40/x
  3. Step 3: Cross multiply
    120,817.60x = 181,269.60 × 50,718.40
  4. Step 4: Simplify right side
    120,817.60x = 9,193,704,080.64
  5. Step 5: Solve for x
    x = 9,193,704,080.64/120,817.60
  6. Step 6: Final answer
    x = 76,095.74

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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.