Home / 126,990.70-190,318.90-70,857.23

Finding the Fourth Proportional to 126,990.70, 190,318.90 and 70,857.23

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Solution

The fourth proportional to 126,990.70, 190,318.90 and 70,857.23 is: 106,192.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,990.70 : 190,318.90 = 70,857.23 : x
  2. Step 2: Convert to fraction form
    126,990.70/190,318.90 = 70,857.23/x
  3. Step 3: Cross multiply
    126,990.70x = 190,318.90 × 70,857.23
  4. Step 4: Simplify right side
    126,990.70x = 13,485,470,070.65
  5. Step 5: Solve for x
    x = 13,485,470,070.65/126,990.70
  6. Step 6: Final answer
    x = 106,192.58

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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.