Home / 216,022.48-298,081.38-120,510.70

Finding the Fourth Proportional to 216,022.48, 298,081.38 and 120,510.70

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Solution

The fourth proportional to 216,022.48, 298,081.38 and 120,510.70 is: 166,288.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,022.48 : 298,081.38 = 120,510.70 : x
  2. Step 2: Convert to fraction form
    216,022.48/298,081.38 = 120,510.70/x
  3. Step 3: Cross multiply
    216,022.48x = 298,081.38 × 120,510.70
  4. Step 4: Simplify right side
    216,022.48x = 35,921,995,760.77
  5. Step 5: Solve for x
    x = 35,921,995,760.77/216,022.48
  6. Step 6: Final answer
    x = 166,288.23

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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.