Home / 109,532.40-164,104.20-89,703.60

Finding the Fourth Proportional to 109,532.40, 164,104.20 and 89,703.60

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Solution

The fourth proportional to 109,532.40, 164,104.20 and 89,703.60 is: 134,396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,532.40 : 164,104.20 = 89,703.60 : x
  2. Step 2: Convert to fraction form
    109,532.40/164,104.20 = 89,703.60/x
  3. Step 3: Cross multiply
    109,532.40x = 164,104.20 × 89,703.60
  4. Step 4: Simplify right side
    109,532.40x = 14,720,737,515.12
  5. Step 5: Solve for x
    x = 14,720,737,515.12/109,532.40
  6. Step 6: Final answer
    x = 134,396.19

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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.