Home / 149,028.36-205,641.90-85,362.36

Finding the Fourth Proportional to 149,028.36, 205,641.90 and 85,362.36

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Solution

The fourth proportional to 149,028.36, 205,641.90 and 85,362.36 is: 117,790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,028.36 : 205,641.90 = 85,362.36 : x
  2. Step 2: Convert to fraction form
    149,028.36/205,641.90 = 85,362.36/x
  3. Step 3: Cross multiply
    149,028.36x = 205,641.90 × 85,362.36
  4. Step 4: Simplify right side
    149,028.36x = 17,554,077,898.88
  5. Step 5: Solve for x
    x = 17,554,077,898.88/149,028.36
  6. Step 6: Final answer
    x = 117,790.18

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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.