Home / 109,664.40-164,383.20-59,638.80

Finding the Fourth Proportional to 109,664.40, 164,383.20 and 59,638.80

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Solution

The fourth proportional to 109,664.40, 164,383.20 and 59,638.80 is: 89,396.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,664.40 : 164,383.20 = 59,638.80 : x
  2. Step 2: Convert to fraction form
    109,664.40/164,383.20 = 59,638.80/x
  3. Step 3: Cross multiply
    109,664.40x = 164,383.20 × 59,638.80
  4. Step 4: Simplify right side
    109,664.40x = 9,803,616,788.16
  5. Step 5: Solve for x
    x = 9,803,616,788.16/109,664.40
  6. Step 6: Final answer
    x = 89,396.53

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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.