Home / 113,986.20-171,010.80-47,457.60

Finding the Fourth Proportional to 113,986.20, 171,010.80 and 47,457.60

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Solution

The fourth proportional to 113,986.20, 171,010.80 and 47,457.60 is: 71,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,986.20 : 171,010.80 = 47,457.60 : x
  2. Step 2: Convert to fraction form
    113,986.20/171,010.80 = 47,457.60/x
  3. Step 3: Cross multiply
    113,986.20x = 171,010.80 × 47,457.60
  4. Step 4: Simplify right side
    113,986.20x = 8,115,762,142.08
  5. Step 5: Solve for x
    x = 8,115,762,142.08/113,986.20
  6. Step 6: Final answer
    x = 71,199.51

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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.