Home / 483,134.56-724,739.86-128,148.60

Finding the Fourth Proportional to 483,134.56, 724,739.86 and 128,148.60

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Solution

The fourth proportional to 483,134.56, 724,739.86 and 128,148.60 is: 192,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,134.56 : 724,739.86 = 128,148.60 : x
  2. Step 2: Convert to fraction form
    483,134.56/724,739.86 = 128,148.60/x
  3. Step 3: Cross multiply
    483,134.56x = 724,739.86 × 128,148.60
  4. Step 4: Simplify right side
    483,134.56x = 92,874,398,423.20
  5. Step 5: Solve for x
    x = 92,874,398,423.20/483,134.56
  6. Step 6: Final answer
    x = 192,232.98

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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.