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Finding the Fourth Proportional to 145,433.01, 218,147.88 and 56,748.81

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Solution

The fourth proportional to 145,433.01, 218,147.88 and 56,748.81 is: 85,122.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,433.01 : 218,147.88 = 56,748.81 : x
  2. Step 2: Convert to fraction form
    145,433.01/218,147.88 = 56,748.81/x
  3. Step 3: Cross multiply
    145,433.01x = 218,147.88 × 56,748.81
  4. Step 4: Simplify right side
    145,433.01x = 12,379,632,594.02
  5. Step 5: Solve for x
    x = 12,379,632,594.02/145,433.01
  6. Step 6: Final answer
    x = 85,122.58

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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.