Home / 140,534.42-193,937.58-76,872.07

Finding the Fourth Proportional to 140,534.42, 193,937.58 and 76,872.07

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Solution

The fourth proportional to 140,534.42, 193,937.58 and 76,872.07 is: 106,083.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,534.42 : 193,937.58 = 76,872.07 : x
  2. Step 2: Convert to fraction form
    140,534.42/193,937.58 = 76,872.07/x
  3. Step 3: Cross multiply
    140,534.42x = 193,937.58 × 76,872.07
  4. Step 4: Simplify right side
    140,534.42x = 14,908,381,871.34
  5. Step 5: Solve for x
    x = 14,908,381,871.34/140,534.42
  6. Step 6: Final answer
    x = 106,083.49

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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.