Home / 109,581.70-164,360.40-89,825.80

Finding the Fourth Proportional to 109,581.70, 164,360.40 and 89,825.80

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Solution

The fourth proportional to 109,581.70, 164,360.40 and 89,825.80 is: 134,728.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,581.70 : 164,360.40 = 89,825.80 : x
  2. Step 2: Convert to fraction form
    109,581.70/164,360.40 = 89,825.80/x
  3. Step 3: Cross multiply
    109,581.70x = 164,360.40 × 89,825.80
  4. Step 4: Simplify right side
    109,581.70x = 14,763,804,418.32
  5. Step 5: Solve for x
    x = 14,763,804,418.32/109,581.70
  6. Step 6: Final answer
    x = 134,728.74

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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.