Home / 163,990.17-226,303.34-91,391.46

Finding the Fourth Proportional to 163,990.17, 226,303.34 and 91,391.46

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Solution

The fourth proportional to 163,990.17, 226,303.34 and 91,391.46 is: 126,118.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,990.17 : 226,303.34 = 91,391.46 : x
  2. Step 2: Convert to fraction form
    163,990.17/226,303.34 = 91,391.46/x
  3. Step 3: Cross multiply
    163,990.17x = 226,303.34 × 91,391.46
  4. Step 4: Simplify right side
    163,990.17x = 20,682,191,339.88
  5. Step 5: Solve for x
    x = 20,682,191,339.88/163,990.17
  6. Step 6: Final answer
    x = 126,118.48

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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.