Home / 454,560.04-681,794.70-139,019.68

Finding the Fourth Proportional to 454,560.04, 681,794.70 and 139,019.68

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Solution

The fourth proportional to 454,560.04, 681,794.70 and 139,019.68 is: 208,515.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,560.04 : 681,794.70 = 139,019.68 : x
  2. Step 2: Convert to fraction form
    454,560.04/681,794.70 = 139,019.68/x
  3. Step 3: Cross multiply
    454,560.04x = 681,794.70 × 139,019.68
  4. Step 4: Simplify right side
    454,560.04x = 94,782,881,019.70
  5. Step 5: Solve for x
    x = 94,782,881,019.70/454,560.04
  6. Step 6: Final answer
    x = 208,515.65

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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.