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Finding the Fourth Proportional to 155,433.60, 214,401.60 and 101,692.80

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Solution

The fourth proportional to 155,433.60, 214,401.60 and 101,692.80 is: 140,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,433.60 : 214,401.60 = 101,692.80 : x
  2. Step 2: Convert to fraction form
    155,433.60/214,401.60 = 101,692.80/x
  3. Step 3: Cross multiply
    155,433.60x = 214,401.60 × 101,692.80
  4. Step 4: Simplify right side
    155,433.60x = 21,803,099,028.48
  5. Step 5: Solve for x
    x = 21,803,099,028.48/155,433.60
  6. Step 6: Final answer
    x = 140,272.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.