Home / 120,189.12-180,288.18-35,950.38

Finding the Fourth Proportional to 120,189.12, 180,288.18 and 35,950.38

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Solution

The fourth proportional to 120,189.12, 180,288.18 and 35,950.38 is: 53,926.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,189.12 : 180,288.18 = 35,950.38 : x
  2. Step 2: Convert to fraction form
    120,189.12/180,288.18 = 35,950.38/x
  3. Step 3: Cross multiply
    120,189.12x = 180,288.18 × 35,950.38
  4. Step 4: Simplify right side
    120,189.12x = 6,481,428,580.51
  5. Step 5: Solve for x
    x = 6,481,428,580.51/120,189.12
  6. Step 6: Final answer
    x = 53,926.92

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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.