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Finding the Fourth Proportional to 145,586.37, 218,379.56 and 66,700.59

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Solution

The fourth proportional to 145,586.37, 218,379.56 and 66,700.59 is: 100,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,586.37 : 218,379.56 = 66,700.59 : x
  2. Step 2: Convert to fraction form
    145,586.37/218,379.56 = 66,700.59/x
  3. Step 3: Cross multiply
    145,586.37x = 218,379.56 × 66,700.59
  4. Step 4: Simplify right side
    145,586.37x = 14,566,045,162.44
  5. Step 5: Solve for x
    x = 14,566,045,162.44/145,586.37
  6. Step 6: Final answer
    x = 100,050.89

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Similar ratio
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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.