Home / 108,722.04-149,972.70-68,371.80

Finding the Fourth Proportional to 108,722.04, 149,972.70 and 68,371.80

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Solution

The fourth proportional to 108,722.04, 149,972.70 and 68,371.80 is: 94,313.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,722.04 : 149,972.70 = 68,371.80 : x
  2. Step 2: Convert to fraction form
    108,722.04/149,972.70 = 68,371.80/x
  3. Step 3: Cross multiply
    108,722.04x = 149,972.70 × 68,371.80
  4. Step 4: Simplify right side
    108,722.04x = 10,253,903,449.86
  5. Step 5: Solve for x
    x = 10,253,903,449.86/108,722.04
  6. Step 6: Final answer
    x = 94,313.02

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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.