Home / 154,232.20-212,793.78-90,533.80

Finding the Fourth Proportional to 154,232.20, 212,793.78 and 90,533.80

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Solution

The fourth proportional to 154,232.20, 212,793.78 and 90,533.80 is: 124,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,232.20 : 212,793.78 = 90,533.80 : x
  2. Step 2: Convert to fraction form
    154,232.20/212,793.78 = 90,533.80/x
  3. Step 3: Cross multiply
    154,232.20x = 212,793.78 × 90,533.80
  4. Step 4: Simplify right side
    154,232.20x = 19,265,029,519.76
  5. Step 5: Solve for x
    x = 19,265,029,519.76/154,232.20
  6. Step 6: Final answer
    x = 124,909.26

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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.