Home / 110,040.40-164,866.20-90,211.60

Finding the Fourth Proportional to 110,040.40, 164,866.20 and 90,211.60

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Solution

The fourth proportional to 110,040.40, 164,866.20 and 90,211.60 is: 135,158.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,040.40 : 164,866.20 = 90,211.60 : x
  2. Step 2: Convert to fraction form
    110,040.40/164,866.20 = 90,211.60/x
  3. Step 3: Cross multiply
    110,040.40x = 164,866.20 × 90,211.60
  4. Step 4: Simplify right side
    110,040.40x = 14,872,843,687.92
  5. Step 5: Solve for x
    x = 14,872,843,687.92/110,040.40
  6. Step 6: Final answer
    x = 135,158.03

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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.