Home / 190,055.16-285,451.80-139,937.34

Finding the Fourth Proportional to 190,055.16, 285,451.80 and 139,937.34

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Solution

The fourth proportional to 190,055.16, 285,451.80 and 139,937.34 is: 210,177.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,055.16 : 285,451.80 = 139,937.34 : x
  2. Step 2: Convert to fraction form
    190,055.16/285,451.80 = 139,937.34/x
  3. Step 3: Cross multiply
    190,055.16x = 285,451.80 × 139,937.34
  4. Step 4: Simplify right side
    190,055.16x = 39,945,365,590.21
  5. Step 5: Solve for x
    x = 39,945,365,590.21/190,055.16
  6. Step 6: Final answer
    x = 210,177.75

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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.