Home / 109,456.35-163,864.64-98,950.55

Finding the Fourth Proportional to 109,456.35, 163,864.64 and 98,950.55

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Solution

The fourth proportional to 109,456.35, 163,864.64 and 98,950.55 is: 148,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,456.35 : 163,864.64 = 98,950.55 : x
  2. Step 2: Convert to fraction form
    109,456.35/163,864.64 = 98,950.55/x
  3. Step 3: Cross multiply
    109,456.35x = 163,864.64 × 98,950.55
  4. Step 4: Simplify right side
    109,456.35x = 16,214,494,939.48
  5. Step 5: Solve for x
    x = 16,214,494,939.48/109,456.35
  6. Step 6: Final answer
    x = 148,136.63

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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.