Home / 146,408.80-219,613.20-86,533.60

Finding the Fourth Proportional to 146,408.80, 219,613.20 and 86,533.60

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Solution

The fourth proportional to 146,408.80, 219,613.20 and 86,533.60 is: 129,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,408.80 : 219,613.20 = 86,533.60 : x
  2. Step 2: Convert to fraction form
    146,408.80/219,613.20 = 86,533.60/x
  3. Step 3: Cross multiply
    146,408.80x = 219,613.20 × 86,533.60
  4. Step 4: Simplify right side
    146,408.80x = 19,003,920,803.52
  5. Step 5: Solve for x
    x = 19,003,920,803.52/146,408.80
  6. Step 6: Final answer
    x = 129,800.40

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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.