Home / 109,609.20-164,235.60-99,111.60

Finding the Fourth Proportional to 109,609.20, 164,235.60 and 99,111.60

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Solution

The fourth proportional to 109,609.20, 164,235.60 and 99,111.60 is: 148,506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,609.20 : 164,235.60 = 99,111.60 : x
  2. Step 2: Convert to fraction form
    109,609.20/164,235.60 = 99,111.60/x
  3. Step 3: Cross multiply
    109,609.20x = 164,235.60 × 99,111.60
  4. Step 4: Simplify right side
    109,609.20x = 16,277,653,092.96
  5. Step 5: Solve for x
    x = 16,277,653,092.96/109,609.20
  6. Step 6: Final answer
    x = 148,506.27

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1.5x scale

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.