Home / 235,436.32-324,900.49-128,006.40

Finding the Fourth Proportional to 235,436.32, 324,900.49 and 128,006.40

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Solution

The fourth proportional to 235,436.32, 324,900.49 and 128,006.40 is: 176,647.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,436.32 : 324,900.49 = 128,006.40 : x
  2. Step 2: Convert to fraction form
    235,436.32/324,900.49 = 128,006.40/x
  3. Step 3: Cross multiply
    235,436.32x = 324,900.49 × 128,006.40
  4. Step 4: Simplify right side
    235,436.32x = 41,589,342,667.74
  5. Step 5: Solve for x
    x = 41,589,342,667.74/235,436.32
  6. Step 6: Final answer
    x = 176,647.95

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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.