Home / 123,421.45-185,113.26-39,170.69

Finding the Fourth Proportional to 123,421.45, 185,113.26 and 39,170.69

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Solution

The fourth proportional to 123,421.45, 185,113.26 and 39,170.69 is: 58,750.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,421.45 : 185,113.26 = 39,170.69 : x
  2. Step 2: Convert to fraction form
    123,421.45/185,113.26 = 39,170.69/x
  3. Step 3: Cross multiply
    123,421.45x = 185,113.26 × 39,170.69
  4. Step 4: Simplify right side
    123,421.45x = 7,251,014,122.35
  5. Step 5: Solve for x
    x = 7,251,014,122.35/123,421.45
  6. Step 6: Final answer
    x = 58,750.03

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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.