Home / 142,825.04-197,095.20-82,395.80

Finding the Fourth Proportional to 142,825.04, 197,095.20 and 82,395.80

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Solution

The fourth proportional to 142,825.04, 197,095.20 and 82,395.80 is: 113,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,825.04 : 197,095.20 = 82,395.80 : x
  2. Step 2: Convert to fraction form
    142,825.04/197,095.20 = 82,395.80/x
  3. Step 3: Cross multiply
    142,825.04x = 197,095.20 × 82,395.80
  4. Step 4: Simplify right side
    142,825.04x = 16,239,816,680.16
  5. Step 5: Solve for x
    x = 16,239,816,680.16/142,825.04
  6. Step 6: Final answer
    x = 113,704.27

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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.