Home / 140,740.10-194,214.14-77,065.60

Finding the Fourth Proportional to 140,740.10, 194,214.14 and 77,065.60

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Solution

The fourth proportional to 140,740.10, 194,214.14 and 77,065.60 is: 106,346.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,740.10 : 194,214.14 = 77,065.60 : x
  2. Step 2: Convert to fraction form
    140,740.10/194,214.14 = 77,065.60/x
  3. Step 3: Cross multiply
    140,740.10x = 194,214.14 × 77,065.60
  4. Step 4: Simplify right side
    140,740.10x = 14,967,229,227.58
  5. Step 5: Solve for x
    x = 14,967,229,227.58/140,740.10
  6. Step 6: Final answer
    x = 106,346.59

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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.