Home / 120,529.90-180,795.15-36,290.31

Finding the Fourth Proportional to 120,529.90, 180,795.15 and 36,290.31

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Solution

The fourth proportional to 120,529.90, 180,795.15 and 36,290.31 is: 54,435.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,529.90 : 180,795.15 = 36,290.31 : x
  2. Step 2: Convert to fraction form
    120,529.90/180,795.15 = 36,290.31/x
  3. Step 3: Cross multiply
    120,529.90x = 180,795.15 × 36,290.31
  4. Step 4: Simplify right side
    120,529.90x = 6,561,112,040.00
  5. Step 5: Solve for x
    x = 6,561,112,040.00/120,529.90
  6. Step 6: Final answer
    x = 54,435.56

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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.