Home / 114,759.55-172,139.04-30,519.72

Finding the Fourth Proportional to 114,759.55, 172,139.04 and 30,519.72

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Solution

The fourth proportional to 114,759.55, 172,139.04 and 30,519.72 is: 45,779.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,759.55 : 172,139.04 = 30,519.72 : x
  2. Step 2: Convert to fraction form
    114,759.55/172,139.04 = 30,519.72/x
  3. Step 3: Cross multiply
    114,759.55x = 172,139.04 × 30,519.72
  4. Step 4: Simplify right side
    114,759.55x = 5,253,635,301.87
  5. Step 5: Solve for x
    x = 5,253,635,301.87/114,759.55
  6. Step 6: Final answer
    x = 45,779.50

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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.