Home / 123,492.82-170,420.91-66,904.19

Finding the Fourth Proportional to 123,492.82, 170,420.91 and 66,904.19

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Solution

The fourth proportional to 123,492.82, 170,420.91 and 66,904.19 is: 92,328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,492.82 : 170,420.91 = 66,904.19 : x
  2. Step 2: Convert to fraction form
    123,492.82/170,420.91 = 66,904.19/x
  3. Step 3: Cross multiply
    123,492.82x = 170,420.91 × 66,904.19
  4. Step 4: Simplify right side
    123,492.82x = 11,401,873,201.40
  5. Step 5: Solve for x
    x = 11,401,873,201.40/123,492.82
  6. Step 6: Final answer
    x = 92,328.23

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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.