Home / 137,389.26-189,431.28-106,771.26

Finding the Fourth Proportional to 137,389.26, 189,431.28 and 106,771.26

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Solution

The fourth proportional to 137,389.26, 189,431.28 and 106,771.26 is: 147,215.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,389.26 : 189,431.28 = 106,771.26 : x
  2. Step 2: Convert to fraction form
    137,389.26/189,431.28 = 106,771.26/x
  3. Step 3: Cross multiply
    137,389.26x = 189,431.28 × 106,771.26
  4. Step 4: Simplify right side
    137,389.26x = 20,225,816,449.01
  5. Step 5: Solve for x
    x = 20,225,816,449.01/137,389.26
  6. Step 6: Final answer
    x = 147,215.41

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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.