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Finding the Fourth Proportional to 100,879.02, 151,230.87 and 50,917.50

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Solution

The fourth proportional to 100,879.02, 151,230.87 and 50,917.50 is: 76,332.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,879.02 : 151,230.87 = 50,917.50 : x
  2. Step 2: Convert to fraction form
    100,879.02/151,230.87 = 50,917.50/x
  3. Step 3: Cross multiply
    100,879.02x = 151,230.87 × 50,917.50
  4. Step 4: Simplify right side
    100,879.02x = 7,700,297,823.23
  5. Step 5: Solve for x
    x = 7,700,297,823.23/100,879.02
  6. Step 6: Final answer
    x = 76,332.00

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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.