Home / 113,820.40-170,730.60-54,771.40

Finding the Fourth Proportional to 113,820.40, 170,730.60 and 54,771.40

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Solution

The fourth proportional to 113,820.40, 170,730.60 and 54,771.40 is: 82,157.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,820.40 : 170,730.60 = 54,771.40 : x
  2. Step 2: Convert to fraction form
    113,820.40/170,730.60 = 54,771.40/x
  3. Step 3: Cross multiply
    113,820.40x = 170,730.60 × 54,771.40
  4. Step 4: Simplify right side
    113,820.40x = 9,351,153,984.84
  5. Step 5: Solve for x
    x = 9,351,153,984.84/113,820.40
  6. Step 6: Final answer
    x = 82,157.10

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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.