Home / 235,621.98-325,161.54-128,193.30

Finding the Fourth Proportional to 235,621.98, 325,161.54 and 128,193.30

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Solution

The fourth proportional to 235,621.98, 325,161.54 and 128,193.30 is: 176,908.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,621.98 : 325,161.54 = 128,193.30 : x
  2. Step 2: Convert to fraction form
    235,621.98/325,161.54 = 128,193.30/x
  3. Step 3: Cross multiply
    235,621.98x = 325,161.54 × 128,193.30
  4. Step 4: Simplify right side
    235,621.98x = 41,683,530,845.68
  5. Step 5: Solve for x
    x = 41,683,530,845.68/235,621.98
  6. Step 6: Final answer
    x = 176,908.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.