Home / 147,605.80-221,408.70-135,358.60

Finding the Fourth Proportional to 147,605.80, 221,408.70 and 135,358.60

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Solution

The fourth proportional to 147,605.80, 221,408.70 and 135,358.60 is: 203,037.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,605.80 : 221,408.70 = 135,358.60 : x
  2. Step 2: Convert to fraction form
    147,605.80/221,408.70 = 135,358.60/x
  3. Step 3: Cross multiply
    147,605.80x = 221,408.70 × 135,358.60
  4. Step 4: Simplify right side
    147,605.80x = 29,969,571,659.82
  5. Step 5: Solve for x
    x = 29,969,571,659.82/147,605.80
  6. Step 6: Final answer
    x = 203,037.90

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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.