Home / 235,517.65-325,011.21-128,085.37

Finding the Fourth Proportional to 235,517.65, 325,011.21 and 128,085.37

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Solution

The fourth proportional to 235,517.65, 325,011.21 and 128,085.37 is: 176,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,517.65 : 325,011.21 = 128,085.37 : x
  2. Step 2: Convert to fraction form
    235,517.65/325,011.21 = 128,085.37/x
  3. Step 3: Cross multiply
    235,517.65x = 325,011.21 × 128,085.37
  4. Step 4: Simplify right side
    235,517.65x = 41,629,179,461.94
  5. Step 5: Solve for x
    x = 41,629,179,461.94/235,517.65
  6. Step 6: Final answer
    x = 176,756.10

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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.