Home / 120,616.08-166,457.74-69,638.16

Finding the Fourth Proportional to 120,616.08, 166,457.74 and 69,638.16

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Solution

The fourth proportional to 120,616.08, 166,457.74 and 69,638.16 is: 96,105.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,616.08 : 166,457.74 = 69,638.16 : x
  2. Step 2: Convert to fraction form
    120,616.08/166,457.74 = 69,638.16/x
  3. Step 3: Cross multiply
    120,616.08x = 166,457.74 × 69,638.16
  4. Step 4: Simplify right side
    120,616.08x = 11,591,810,731.36
  5. Step 5: Solve for x
    x = 11,591,810,731.36/120,616.08
  6. Step 6: Final answer
    x = 96,105.02

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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.