Home / 142,758.20-214,137.30-89,996.60

Finding the Fourth Proportional to 142,758.20, 214,137.30 and 89,996.60

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Solution

The fourth proportional to 142,758.20, 214,137.30 and 89,996.60 is: 134,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,758.20 : 214,137.30 = 89,996.60 : x
  2. Step 2: Convert to fraction form
    142,758.20/214,137.30 = 89,996.60/x
  3. Step 3: Cross multiply
    142,758.20x = 214,137.30 × 89,996.60
  4. Step 4: Simplify right side
    142,758.20x = 19,271,628,933.18
  5. Step 5: Solve for x
    x = 19,271,628,933.18/142,758.20
  6. Step 6: Final answer
    x = 134,994.90

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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.