Home / 143,215.88-197,606.10-86,626.04

Finding the Fourth Proportional to 143,215.88, 197,606.10 and 86,626.04

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Solution

The fourth proportional to 143,215.88, 197,606.10 and 86,626.04 is: 119,524.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,215.88 : 197,606.10 = 86,626.04 : x
  2. Step 2: Convert to fraction form
    143,215.88/197,606.10 = 86,626.04/x
  3. Step 3: Cross multiply
    143,215.88x = 197,606.10 × 86,626.04
  4. Step 4: Simplify right side
    143,215.88x = 17,117,833,922.84
  5. Step 5: Solve for x
    x = 17,117,833,922.84/143,215.88
  6. Step 6: Final answer
    x = 119,524.69

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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.