Home / 120,512.22-180,533.07-57,242.31

Finding the Fourth Proportional to 120,512.22, 180,533.07 and 57,242.31

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Solution

The fourth proportional to 120,512.22, 180,533.07 and 57,242.31 is: 85,751.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,512.22 : 180,533.07 = 57,242.31 : x
  2. Step 2: Convert to fraction form
    120,512.22/180,533.07 = 57,242.31/x
  3. Step 3: Cross multiply
    120,512.22x = 180,533.07 × 57,242.31
  4. Step 4: Simplify right side
    120,512.22x = 10,334,129,958.19
  5. Step 5: Solve for x
    x = 10,334,129,958.19/120,512.22
  6. Step 6: Final answer
    x = 85,751.72

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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.