Home / 85,883.24-118,555.98-80,503.22

Finding the Fourth Proportional to 85,883.24, 118,555.98 and 80,503.22

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Solution

The fourth proportional to 85,883.24, 118,555.98 and 80,503.22 is: 111,129.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,883.24 : 118,555.98 = 80,503.22 : x
  2. Step 2: Convert to fraction form
    85,883.24/118,555.98 = 80,503.22/x
  3. Step 3: Cross multiply
    85,883.24x = 118,555.98 × 80,503.22
  4. Step 4: Simplify right side
    85,883.24x = 9,544,138,140.26
  5. Step 5: Solve for x
    x = 9,544,138,140.26/85,883.24
  6. Step 6: Final answer
    x = 111,129.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.