Home / 140,215.63-193,496.55-76,553.42

Finding the Fourth Proportional to 140,215.63, 193,496.55 and 76,553.42

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Solution

The fourth proportional to 140,215.63, 193,496.55 and 76,553.42 is: 105,643.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,215.63 : 193,496.55 = 76,553.42 : x
  2. Step 2: Convert to fraction form
    140,215.63/193,496.55 = 76,553.42/x
  3. Step 3: Cross multiply
    140,215.63x = 193,496.55 × 76,553.42
  4. Step 4: Simplify right side
    140,215.63x = 14,812,823,144.44
  5. Step 5: Solve for x
    x = 14,812,823,144.44/140,215.63
  6. Step 6: Final answer
    x = 105,643.17

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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.