Home / 120,379.12-180,563.28-57,153.04

Finding the Fourth Proportional to 120,379.12, 180,563.28 and 57,153.04

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Solution

The fourth proportional to 120,379.12, 180,563.28 and 57,153.04 is: 85,727.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,379.12 : 180,563.28 = 57,153.04 : x
  2. Step 2: Convert to fraction form
    120,379.12/180,563.28 = 57,153.04/x
  3. Step 3: Cross multiply
    120,379.12x = 180,563.28 × 57,153.04
  4. Step 4: Simplify right side
    120,379.12x = 10,319,740,364.37
  5. Step 5: Solve for x
    x = 10,319,740,364.37/120,379.12
  6. Step 6: Final answer
    x = 85,727.00

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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.