Home / 235,627.36-325,156.11-128,197.50

Finding the Fourth Proportional to 235,627.36, 325,156.11 and 128,197.50

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Solution

The fourth proportional to 235,627.36, 325,156.11 and 128,197.50 is: 176,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,627.36 : 325,156.11 = 128,197.50 : x
  2. Step 2: Convert to fraction form
    235,627.36/325,156.11 = 128,197.50/x
  3. Step 3: Cross multiply
    235,627.36x = 325,156.11 × 128,197.50
  4. Step 4: Simplify right side
    235,627.36x = 41,684,198,711.65
  5. Step 5: Solve for x
    x = 41,684,198,711.65/235,627.36
  6. Step 6: Final answer
    x = 176,907.30

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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.