Home / 120,405.75-180,617.29-41,518.84

Finding the Fourth Proportional to 120,405.75, 180,617.29 and 41,518.84

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Solution

The fourth proportional to 120,405.75, 180,617.29 and 41,518.84 is: 62,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,405.75 : 180,617.29 = 41,518.84 : x
  2. Step 2: Convert to fraction form
    120,405.75/180,617.29 = 41,518.84/x
  3. Step 3: Cross multiply
    120,405.75x = 180,617.29 × 41,518.84
  4. Step 4: Simplify right side
    120,405.75x = 7,499,020,157.15
  5. Step 5: Solve for x
    x = 7,499,020,157.15/120,405.75
  6. Step 6: Final answer
    x = 62,281.25

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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.