Home / 190,427.56-262,779.60-105,539.56

Finding the Fourth Proportional to 190,427.56, 262,779.60 and 105,539.56

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Solution

The fourth proportional to 190,427.56, 262,779.60 and 105,539.56 is: 145,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,427.56 : 262,779.60 = 105,539.56 : x
  2. Step 2: Convert to fraction form
    190,427.56/262,779.60 = 105,539.56/x
  3. Step 3: Cross multiply
    190,427.56x = 262,779.60 × 105,539.56
  4. Step 4: Simplify right side
    190,427.56x = 27,733,643,360.98
  5. Step 5: Solve for x
    x = 27,733,643,360.98/190,427.56
  6. Step 6: Final answer
    x = 145,638.81

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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.