Home / 454,403.42-681,606.75-138,859.01

Finding the Fourth Proportional to 454,403.42, 681,606.75 and 138,859.01

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Solution

The fourth proportional to 454,403.42, 681,606.75 and 138,859.01 is: 208,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,403.42 : 681,606.75 = 138,859.01 : x
  2. Step 2: Convert to fraction form
    454,403.42/681,606.75 = 138,859.01/x
  3. Step 3: Cross multiply
    454,403.42x = 681,606.75 × 138,859.01
  4. Step 4: Simplify right side
    454,403.42x = 94,647,238,514.32
  5. Step 5: Solve for x
    x = 94,647,238,514.32/454,403.42
  6. Step 6: Final answer
    x = 208,289.01

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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.