Home / 101,219.12-139,740.69-67,273.64

Finding the Fourth Proportional to 101,219.12, 139,740.69 and 67,273.64

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Solution

The fourth proportional to 101,219.12, 139,740.69 and 67,273.64 is: 92,876.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,219.12 : 139,740.69 = 67,273.64 : x
  2. Step 2: Convert to fraction form
    101,219.12/139,740.69 = 67,273.64/x
  3. Step 3: Cross multiply
    101,219.12x = 139,740.69 × 67,273.64
  4. Step 4: Simplify right side
    101,219.12x = 9,400,864,173.71
  5. Step 5: Solve for x
    x = 9,400,864,173.71/101,219.12
  6. Step 6: Final answer
    x = 92,876.37

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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.