Home / 132,899.20-199,280.40-39,392.80

Finding the Fourth Proportional to 132,899.20, 199,280.40 and 39,392.80

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Solution

The fourth proportional to 132,899.20, 199,280.40 and 39,392.80 is: 59,068.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,899.20 : 199,280.40 = 39,392.80 : x
  2. Step 2: Convert to fraction form
    132,899.20/199,280.40 = 39,392.80/x
  3. Step 3: Cross multiply
    132,899.20x = 199,280.40 × 39,392.80
  4. Step 4: Simplify right side
    132,899.20x = 7,850,212,941.12
  5. Step 5: Solve for x
    x = 7,850,212,941.12/132,899.20
  6. Step 6: Final answer
    x = 59,068.93

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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.