Home / 279,521.90-419,153.76-89,946.98

Finding the Fourth Proportional to 279,521.90, 419,153.76 and 89,946.98

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Solution

The fourth proportional to 279,521.90, 419,153.76 and 89,946.98 is: 134,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,521.90 : 419,153.76 = 89,946.98 : x
  2. Step 2: Convert to fraction form
    279,521.90/419,153.76 = 89,946.98/x
  3. Step 3: Cross multiply
    279,521.90x = 419,153.76 × 89,946.98
  4. Step 4: Simplify right side
    279,521.90x = 37,701,614,867.64
  5. Step 5: Solve for x
    x = 37,701,614,867.64/279,521.90
  6. Step 6: Final answer
    x = 134,878.93

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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.