Home / 279,516.90-419,146.29-89,941.98

Finding the Fourth Proportional to 279,516.90, 419,146.29 and 89,941.98

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Solution

The fourth proportional to 279,516.90, 419,146.29 and 89,941.98 is: 134,871.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,516.90 : 419,146.29 = 89,941.98 : x
  2. Step 2: Convert to fraction form
    279,516.90/419,146.29 = 89,941.98/x
  3. Step 3: Cross multiply
    279,516.90x = 419,146.29 × 89,941.98
  4. Step 4: Simplify right side
    279,516.90x = 37,698,847,232.25
  5. Step 5: Solve for x
    x = 37,698,847,232.25/279,516.90
  6. Step 6: Final answer
    x = 134,871.44

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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.