Home / 108,803.12-163,221.12-38,665.76

Finding the Fourth Proportional to 108,803.12, 163,221.12 and 38,665.76

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Solution

The fourth proportional to 108,803.12, 163,221.12 and 38,665.76 is: 58,004.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,803.12 : 163,221.12 = 38,665.76 : x
  2. Step 2: Convert to fraction form
    108,803.12/163,221.12 = 38,665.76/x
  3. Step 3: Cross multiply
    108,803.12x = 163,221.12 × 38,665.76
  4. Step 4: Simplify right side
    108,803.12x = 6,311,068,652.85
  5. Step 5: Solve for x
    x = 6,311,068,652.85/108,803.12
  6. Step 6: Final answer
    x = 58,004.48

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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.