Home / 108,724.80-163,079.10-45,528.60

Finding the Fourth Proportional to 108,724.80, 163,079.10 and 45,528.60

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Solution

The fourth proportional to 108,724.80, 163,079.10 and 45,528.60 is: 68,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,724.80 : 163,079.10 = 45,528.60 : x
  2. Step 2: Convert to fraction form
    108,724.80/163,079.10 = 45,528.60/x
  3. Step 3: Cross multiply
    108,724.80x = 163,079.10 × 45,528.60
  4. Step 4: Simplify right side
    108,724.80x = 7,424,763,112.26
  5. Step 5: Solve for x
    x = 7,424,763,112.26/108,724.80
  6. Step 6: Final answer
    x = 68,289.51

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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.