Home / 190,676.04-286,089.30-72,378.78

Finding the Fourth Proportional to 190,676.04, 286,089.30 and 72,378.78

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Solution

The fourth proportional to 190,676.04, 286,089.30 and 72,378.78 is: 108,596.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,676.04 : 286,089.30 = 72,378.78 : x
  2. Step 2: Convert to fraction form
    190,676.04/286,089.30 = 72,378.78/x
  3. Step 3: Cross multiply
    190,676.04x = 286,089.30 × 72,378.78
  4. Step 4: Simplify right side
    190,676.04x = 20,706,794,505.05
  5. Step 5: Solve for x
    x = 20,706,794,505.05/190,676.04
  6. Step 6: Final answer
    x = 108,596.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.