Home / 196,990.16-271,856.60-120,485.25

Finding the Fourth Proportional to 196,990.16, 271,856.60 and 120,485.25

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Solution

The fourth proportional to 196,990.16, 271,856.60 and 120,485.25 is: 166,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,990.16 : 271,856.60 = 120,485.25 : x
  2. Step 2: Convert to fraction form
    196,990.16/271,856.60 = 120,485.25/x
  3. Step 3: Cross multiply
    196,990.16x = 271,856.60 × 120,485.25
  4. Step 4: Simplify right side
    196,990.16x = 32,754,709,812.72
  5. Step 5: Solve for x
    x = 32,754,709,812.72/196,990.16
  6. Step 6: Final answer
    x = 166,275.87

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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.