Home / 190,276.20-285,026.76-90,132.84

Finding the Fourth Proportional to 190,276.20, 285,026.76 and 90,132.84

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Solution

The fourth proportional to 190,276.20, 285,026.76 and 90,132.84 is: 135,015.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,276.20 : 285,026.76 = 90,132.84 : x
  2. Step 2: Convert to fraction form
    190,276.20/285,026.76 = 90,132.84/x
  3. Step 3: Cross multiply
    190,276.20x = 285,026.76 × 90,132.84
  4. Step 4: Simplify right side
    190,276.20x = 25,690,271,354.80
  5. Step 5: Solve for x
    x = 25,690,271,354.80/190,276.20
  6. Step 6: Final answer
    x = 135,015.68

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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.