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Finding the Fourth Proportional to 149,069.74, 223,514.30 and 66,895.86

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Solution

The fourth proportional to 149,069.74, 223,514.30 and 66,895.86 is: 100,303.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,069.74 : 223,514.30 = 66,895.86 : x
  2. Step 2: Convert to fraction form
    149,069.74/223,514.30 = 66,895.86/x
  3. Step 3: Cross multiply
    149,069.74x = 223,514.30 × 66,895.86
  4. Step 4: Simplify right side
    149,069.74x = 14,952,181,320.80
  5. Step 5: Solve for x
    x = 14,952,181,320.80/149,069.74
  6. Step 6: Final answer
    x = 100,303.26

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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.