Home / 196,885.76-271,695.14-120,376.30

Finding the Fourth Proportional to 196,885.76, 271,695.14 and 120,376.30

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Solution

The fourth proportional to 196,885.76, 271,695.14 and 120,376.30 is: 166,114.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,885.76 : 271,695.14 = 120,376.30 : x
  2. Step 2: Convert to fraction form
    196,885.76/271,695.14 = 120,376.30/x
  3. Step 3: Cross multiply
    196,885.76x = 271,695.14 × 120,376.30
  4. Step 4: Simplify right side
    196,885.76x = 32,705,655,681.18
  5. Step 5: Solve for x
    x = 32,705,655,681.18/196,885.76
  6. Step 6: Final answer
    x = 166,114.89

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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.