Home / 283,985.20-425,977.80-84,336.40

Finding the Fourth Proportional to 283,985.20, 425,977.80 and 84,336.40

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Solution

The fourth proportional to 283,985.20, 425,977.80 and 84,336.40 is: 126,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,985.20 : 425,977.80 = 84,336.40 : x
  2. Step 2: Convert to fraction form
    283,985.20/425,977.80 = 84,336.40/x
  3. Step 3: Cross multiply
    283,985.20x = 425,977.80 × 84,336.40
  4. Step 4: Simplify right side
    283,985.20x = 35,925,434,131.92
  5. Step 5: Solve for x
    x = 35,925,434,131.92/283,985.20
  6. Step 6: Final answer
    x = 126,504.60

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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.