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Finding the Fourth Proportional to 145,173, 217,773.26 and 56,433.32

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Solution

The fourth proportional to 145,173, 217,773.26 and 56,433.32 is: 84,655.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,173 : 217,773.26 = 56,433.32 : x
  2. Step 2: Convert to fraction form
    145,173/217,773.26 = 56,433.32/x
  3. Step 3: Cross multiply
    145,173x = 217,773.26 × 56,433.32
  4. Step 4: Simplify right side
    145,173x = 12,289,668,069.02
  5. Step 5: Solve for x
    x = 12,289,668,069.02/145,173
  6. Step 6: Final answer
    x = 84,655.33

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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.