Home / 135,022.50-202,660.86-68,510.36

Finding the Fourth Proportional to 135,022.50, 202,660.86 and 68,510.36

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Solution

The fourth proportional to 135,022.50, 202,660.86 and 68,510.36 is: 102,830.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,022.50 : 202,660.86 = 68,510.36 : x
  2. Step 2: Convert to fraction form
    135,022.50/202,660.86 = 68,510.36/x
  3. Step 3: Cross multiply
    135,022.50x = 202,660.86 × 68,510.36
  4. Step 4: Simplify right side
    135,022.50x = 13,884,367,463.21
  5. Step 5: Solve for x
    x = 13,884,367,463.21/135,022.50
  6. Step 6: Final answer
    x = 102,830.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.