Home / 108,093.12-149,125.60-72,226.32

Finding the Fourth Proportional to 108,093.12, 149,125.60 and 72,226.32

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Solution

The fourth proportional to 108,093.12, 149,125.60 and 72,226.32 is: 99,643.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,093.12 : 149,125.60 = 72,226.32 : x
  2. Step 2: Convert to fraction form
    108,093.12/149,125.60 = 72,226.32/x
  3. Step 3: Cross multiply
    108,093.12x = 149,125.60 × 72,226.32
  4. Step 4: Simplify right side
    108,093.12x = 10,770,793,305.79
  5. Step 5: Solve for x
    x = 10,770,793,305.79/108,093.12
  6. Step 6: Final answer
    x = 99,643.65

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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.