Home / 140,283.80-193,591.64-76,621.75

Finding the Fourth Proportional to 140,283.80, 193,591.64 and 76,621.75

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Solution

The fourth proportional to 140,283.80, 193,591.64 and 76,621.75 is: 105,738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,283.80 : 193,591.64 = 76,621.75 : x
  2. Step 2: Convert to fraction form
    140,283.80/193,591.64 = 76,621.75/x
  3. Step 3: Cross multiply
    140,283.80x = 193,591.64 × 76,621.75
  4. Step 4: Simplify right side
    140,283.80x = 14,833,330,242.17
  5. Step 5: Solve for x
    x = 14,833,330,242.17/140,283.80
  6. Step 6: Final answer
    x = 105,738.01

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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.