Home / 113,485.44-156,708.96-71,116.80

Finding the Fourth Proportional to 113,485.44, 156,708.96 and 71,116.80

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Solution

The fourth proportional to 113,485.44, 156,708.96 and 71,116.80 is: 98,203.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,485.44 : 156,708.96 = 71,116.80 : x
  2. Step 2: Convert to fraction form
    113,485.44/156,708.96 = 71,116.80/x
  3. Step 3: Cross multiply
    113,485.44x = 156,708.96 × 71,116.80
  4. Step 4: Simplify right side
    113,485.44x = 11,144,639,766.53
  5. Step 5: Solve for x
    x = 11,144,639,766.53/113,485.44
  6. Step 6: Final answer
    x = 98,203.26

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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.