Home / 230,140.20-345,339.90-89,880.60

Finding the Fourth Proportional to 230,140.20, 345,339.90 and 89,880.60

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Solution

The fourth proportional to 230,140.20, 345,339.90 and 89,880.60 is: 134,871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,140.20 : 345,339.90 = 89,880.60 : x
  2. Step 2: Convert to fraction form
    230,140.20/345,339.90 = 89,880.60/x
  3. Step 3: Cross multiply
    230,140.20x = 345,339.90 × 89,880.60
  4. Step 4: Simplify right side
    230,140.20x = 31,039,357,415.94
  5. Step 5: Solve for x
    x = 31,039,357,415.94/230,140.20
  6. Step 6: Final answer
    x = 134,871.51

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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.