Home / 109,655.20-164,191.20-69,997.60

Finding the Fourth Proportional to 109,655.20, 164,191.20 and 69,997.60

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Solution

The fourth proportional to 109,655.20, 164,191.20 and 69,997.60 is: 104,810.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,655.20 : 164,191.20 = 69,997.60 : x
  2. Step 2: Convert to fraction form
    109,655.20/164,191.20 = 69,997.60/x
  3. Step 3: Cross multiply
    109,655.20x = 164,191.20 × 69,997.60
  4. Step 4: Simplify right side
    109,655.20x = 11,492,989,941.12
  5. Step 5: Solve for x
    x = 11,492,989,941.12/109,655.20
  6. Step 6: Final answer
    x = 104,810.26

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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.