Home / 126,573.40-189,629.70-103,072.60

Finding the Fourth Proportional to 126,573.40, 189,629.70 and 103,072.60

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Solution

The fourth proportional to 126,573.40, 189,629.70 and 103,072.60 is: 154,421.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,573.40 : 189,629.70 = 103,072.60 : x
  2. Step 2: Convert to fraction form
    126,573.40/189,629.70 = 103,072.60/x
  3. Step 3: Cross multiply
    126,573.40x = 189,629.70 × 103,072.60
  4. Step 4: Simplify right side
    126,573.40x = 19,545,626,216.22
  5. Step 5: Solve for x
    x = 19,545,626,216.22/126,573.40
  6. Step 6: Final answer
    x = 154,421.28

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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.