Home / 123,492.32-170,420.22-66,903.69

Finding the Fourth Proportional to 123,492.32, 170,420.22 and 66,903.69

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Solution

The fourth proportional to 123,492.32, 170,420.22 and 66,903.69 is: 92,327.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,492.32 : 170,420.22 = 66,903.69 : x
  2. Step 2: Convert to fraction form
    123,492.32/170,420.22 = 66,903.69/x
  3. Step 3: Cross multiply
    123,492.32x = 170,420.22 × 66,903.69
  4. Step 4: Simplify right side
    123,492.32x = 11,401,741,568.61
  5. Step 5: Solve for x
    x = 11,401,741,568.61/123,492.32
  6. Step 6: Final answer
    x = 92,327.54

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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.