Home / 131,248.20-196,872.30-86,633.40

Finding the Fourth Proportional to 131,248.20, 196,872.30 and 86,633.40

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Solution

The fourth proportional to 131,248.20, 196,872.30 and 86,633.40 is: 129,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,248.20 : 196,872.30 = 86,633.40 : x
  2. Step 2: Convert to fraction form
    131,248.20/196,872.30 = 86,633.40/x
  3. Step 3: Cross multiply
    131,248.20x = 196,872.30 × 86,633.40
  4. Step 4: Simplify right side
    131,248.20x = 17,055,716,714.82
  5. Step 5: Solve for x
    x = 17,055,716,714.82/131,248.20
  6. Step 6: Final answer
    x = 129,950.10

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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.