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Finding the Fourth Proportional to 120,282.40, 180,423.60 and 50,152.60

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Solution

The fourth proportional to 120,282.40, 180,423.60 and 50,152.60 is: 75,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,282.40 : 180,423.60 = 50,152.60 : x
  2. Step 2: Convert to fraction form
    120,282.40/180,423.60 = 50,152.60/x
  3. Step 3: Cross multiply
    120,282.40x = 180,423.60 × 50,152.60
  4. Step 4: Simplify right side
    120,282.40x = 9,048,712,641.36
  5. Step 5: Solve for x
    x = 9,048,712,641.36/120,282.40
  6. Step 6: Final answer
    x = 75,228.90

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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.