Home / 454,627.70-681,968.85-139,087.34

Finding the Fourth Proportional to 454,627.70, 681,968.85 and 139,087.34

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Solution

The fourth proportional to 454,627.70, 681,968.85 and 139,087.34 is: 208,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,627.70 : 681,968.85 = 139,087.34 : x
  2. Step 2: Convert to fraction form
    454,627.70/681,968.85 = 139,087.34/x
  3. Step 3: Cross multiply
    454,627.70x = 681,968.85 × 139,087.34
  4. Step 4: Simplify right side
    454,627.70x = 94,853,233,309.36
  5. Step 5: Solve for x
    x = 94,853,233,309.36/454,627.70
  6. Step 6: Final answer
    x = 208,639.36

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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.