Home / 104,295.26-156,069.16-90,303.55

Finding the Fourth Proportional to 104,295.26, 156,069.16 and 90,303.55

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Solution

The fourth proportional to 104,295.26, 156,069.16 and 90,303.55 is: 135,131.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,295.26 : 156,069.16 = 90,303.55 : x
  2. Step 2: Convert to fraction form
    104,295.26/156,069.16 = 90,303.55/x
  3. Step 3: Cross multiply
    104,295.26x = 156,069.16 × 90,303.55
  4. Step 4: Simplify right side
    104,295.26x = 14,093,599,193.52
  5. Step 5: Solve for x
    x = 14,093,599,193.52/104,295.26
  6. Step 6: Final answer
    x = 135,131.73

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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.