Home / 120,464.13-180,697.64-57,290.35

Finding the Fourth Proportional to 120,464.13, 180,697.64 and 57,290.35

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Solution

The fourth proportional to 120,464.13, 180,697.64 and 57,290.35 is: 85,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,464.13 : 180,697.64 = 57,290.35 : x
  2. Step 2: Convert to fraction form
    120,464.13/180,697.64 = 57,290.35/x
  3. Step 3: Cross multiply
    120,464.13x = 180,697.64 × 57,290.35
  4. Step 4: Simplify right side
    120,464.13x = 10,352,231,039.77
  5. Step 5: Solve for x
    x = 10,352,231,039.77/120,464.13
  6. Step 6: Final answer
    x = 85,936.21

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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.