Home / 190,512.10-285,779.09-57,378.48

Finding the Fourth Proportional to 190,512.10, 285,779.09 and 57,378.48

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Solution

The fourth proportional to 190,512.10, 285,779.09 and 57,378.48 is: 86,071.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,512.10 : 285,779.09 = 57,378.48 : x
  2. Step 2: Convert to fraction form
    190,512.10/285,779.09 = 57,378.48/x
  3. Step 3: Cross multiply
    190,512.10x = 285,779.09 × 57,378.48
  4. Step 4: Simplify right side
    190,512.10x = 16,397,568,549.00
  5. Step 5: Solve for x
    x = 16,397,568,549.00/190,512.10
  6. Step 6: Final answer
    x = 86,071.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.