Home / 189,240.59-261,140.09-108,611.36

Finding the Fourth Proportional to 189,240.59, 261,140.09 and 108,611.36

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Solution

The fourth proportional to 189,240.59, 261,140.09 and 108,611.36 is: 149,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,240.59 : 261,140.09 = 108,611.36 : x
  2. Step 2: Convert to fraction form
    189,240.59/261,140.09 = 108,611.36/x
  3. Step 3: Cross multiply
    189,240.59x = 261,140.09 × 108,611.36
  4. Step 4: Simplify right side
    189,240.59x = 28,362,779,782.37
  5. Step 5: Solve for x
    x = 28,362,779,782.37/189,240.59
  6. Step 6: Final answer
    x = 149,876.83

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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.