Home / 108,723.04-149,974.08-68,372.80

Finding the Fourth Proportional to 108,723.04, 149,974.08 and 68,372.80

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Solution

The fourth proportional to 108,723.04, 149,974.08 and 68,372.80 is: 94,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,723.04 : 149,974.08 = 68,372.80 : x
  2. Step 2: Convert to fraction form
    108,723.04/149,974.08 = 68,372.80/x
  3. Step 3: Cross multiply
    108,723.04x = 149,974.08 × 68,372.80
  4. Step 4: Simplify right side
    108,723.04x = 10,254,147,777.02
  5. Step 5: Solve for x
    x = 10,254,147,777.02/108,723.04
  6. Step 6: Final answer
    x = 94,314.40

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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.