Home / 140,720.07-194,193.45-76,189.31

Finding the Fourth Proportional to 140,720.07, 194,193.45 and 76,189.31

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Solution

The fourth proportional to 140,720.07, 194,193.45 and 76,189.31 is: 105,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,720.07 : 194,193.45 = 76,189.31 : x
  2. Step 2: Convert to fraction form
    140,720.07/194,193.45 = 76,189.31/x
  3. Step 3: Cross multiply
    140,720.07x = 194,193.45 × 76,189.31
  4. Step 4: Simplify right side
    140,720.07x = 14,795,463,705.34
  5. Step 5: Solve for x
    x = 14,795,463,705.34/140,720.07
  6. Step 6: Final answer
    x = 105,141.10

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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.