Home / 138,630.12-208,037.46-75,466.18

Finding the Fourth Proportional to 138,630.12, 208,037.46 and 75,466.18

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Solution

The fourth proportional to 138,630.12, 208,037.46 and 75,466.18 is: 113,249.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,630.12 : 208,037.46 = 75,466.18 : x
  2. Step 2: Convert to fraction form
    138,630.12/208,037.46 = 75,466.18/x
  3. Step 3: Cross multiply
    138,630.12x = 208,037.46 × 75,466.18
  4. Step 4: Simplify right side
    138,630.12x = 15,699,792,946.15
  5. Step 5: Solve for x
    x = 15,699,792,946.15/138,630.12
  6. Step 6: Final answer
    x = 113,249.51

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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.