Home / 123,493.37-170,421.03-66,904.75

Finding the Fourth Proportional to 123,493.37, 170,421.03 and 66,904.75

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Solution

The fourth proportional to 123,493.37, 170,421.03 and 66,904.75 is: 92,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,493.37 : 170,421.03 = 66,904.75 : x
  2. Step 2: Convert to fraction form
    123,493.37/170,421.03 = 66,904.75/x
  3. Step 3: Cross multiply
    123,493.37x = 170,421.03 × 66,904.75
  4. Step 4: Simplify right side
    123,493.37x = 11,401,975,220.26
  5. Step 5: Solve for x
    x = 11,401,975,220.26/123,493.37
  6. Step 6: Final answer
    x = 92,328.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.