Home / 190,587.13-263,003.57-105,712.09

Finding the Fourth Proportional to 190,587.13, 263,003.57 and 105,712.09

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Solution

The fourth proportional to 190,587.13, 263,003.57 and 105,712.09 is: 145,878.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,587.13 : 263,003.57 = 105,712.09 : x
  2. Step 2: Convert to fraction form
    190,587.13/263,003.57 = 105,712.09/x
  3. Step 3: Cross multiply
    190,587.13x = 263,003.57 × 105,712.09
  4. Step 4: Simplify right side
    190,587.13x = 27,802,656,533.60
  5. Step 5: Solve for x
    x = 27,802,656,533.60/190,587.13
  6. Step 6: Final answer
    x = 145,878.98

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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.