Home / 154,399.73-213,008.18-93,960.45

Finding the Fourth Proportional to 154,399.73, 213,008.18 and 93,960.45

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Solution

The fourth proportional to 154,399.73, 213,008.18 and 93,960.45 is: 129,626.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,399.73 : 213,008.18 = 93,960.45 : x
  2. Step 2: Convert to fraction form
    154,399.73/213,008.18 = 93,960.45/x
  3. Step 3: Cross multiply
    154,399.73x = 213,008.18 × 93,960.45
  4. Step 4: Simplify right side
    154,399.73x = 20,014,343,976.68
  5. Step 5: Solve for x
    x = 20,014,343,976.68/154,399.73
  6. Step 6: Final answer
    x = 129,626.81

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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.