Home / 190,215.09-262,451.75-112,651.58

Finding the Fourth Proportional to 190,215.09, 262,451.75 and 112,651.58

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Solution

The fourth proportional to 190,215.09, 262,451.75 and 112,651.58 is: 155,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,215.09 : 262,451.75 = 112,651.58 : x
  2. Step 2: Convert to fraction form
    190,215.09/262,451.75 = 112,651.58/x
  3. Step 3: Cross multiply
    190,215.09x = 262,451.75 × 112,651.58
  4. Step 4: Simplify right side
    190,215.09x = 29,565,604,404.14
  5. Step 5: Solve for x
    x = 29,565,604,404.14/190,215.09
  6. Step 6: Final answer
    x = 155,432.49

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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.