Home / 120,055.15-180,091.84-35,808.72

Finding the Fourth Proportional to 120,055.15, 180,091.84 and 35,808.72

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Solution

The fourth proportional to 120,055.15, 180,091.84 and 35,808.72 is: 53,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,055.15 : 180,091.84 = 35,808.72 : x
  2. Step 2: Convert to fraction form
    120,055.15/180,091.84 = 35,808.72/x
  3. Step 3: Cross multiply
    120,055.15x = 180,091.84 × 35,808.72
  4. Step 4: Simplify right side
    120,055.15x = 6,448,858,272.84
  5. Step 5: Solve for x
    x = 6,448,858,272.84/120,055.15
  6. Step 6: Final answer
    x = 53,715.80

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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.