Home / 109,476.90-150,871.68-79,210.98

Finding the Fourth Proportional to 109,476.90, 150,871.68 and 79,210.98

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Solution

The fourth proportional to 109,476.90, 150,871.68 and 79,210.98 is: 109,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,476.90 : 150,871.68 = 79,210.98 : x
  2. Step 2: Convert to fraction form
    109,476.90/150,871.68 = 79,210.98/x
  3. Step 3: Cross multiply
    109,476.90x = 150,871.68 × 79,210.98
  4. Step 4: Simplify right side
    109,476.90x = 11,950,693,627.05
  5. Step 5: Solve for x
    x = 11,950,693,627.05/109,476.90
  6. Step 6: Final answer
    x = 109,161.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.