Home / 454,626.45-681,966.98-139,086.09

Finding the Fourth Proportional to 454,626.45, 681,966.98 and 139,086.09

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Solution

The fourth proportional to 454,626.45, 681,966.98 and 139,086.09 is: 208,637.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,626.45 : 681,966.98 = 139,086.09 : x
  2. Step 2: Convert to fraction form
    454,626.45/681,966.98 = 139,086.09/x
  3. Step 3: Cross multiply
    454,626.45x = 681,966.98 × 139,086.09
  4. Step 4: Simplify right side
    454,626.45x = 94,852,120,061.88
  5. Step 5: Solve for x
    x = 94,852,120,061.88/454,626.45
  6. Step 6: Final answer
    x = 208,637.49

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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.