Home / 190,419.97-262,779.77-105,537.10

Finding the Fourth Proportional to 190,419.97, 262,779.77 and 105,537.10

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Solution

The fourth proportional to 190,419.97, 262,779.77 and 105,537.10 is: 145,641.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,419.97 : 262,779.77 = 105,537.10 : x
  2. Step 2: Convert to fraction form
    190,419.97/262,779.77 = 105,537.10/x
  3. Step 3: Cross multiply
    190,419.97x = 262,779.77 × 105,537.10
  4. Step 4: Simplify right side
    190,419.97x = 27,733,013,022.88
  5. Step 5: Solve for x
    x = 27,733,013,022.88/190,419.97
  6. Step 6: Final answer
    x = 145,641.31

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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.