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Finding the Fourth Proportional to 104,430.64, 144,110.42 and 56,682.97

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Solution

The fourth proportional to 104,430.64, 144,110.42 and 56,682.97 is: 78,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,430.64 : 144,110.42 = 56,682.97 : x
  2. Step 2: Convert to fraction form
    104,430.64/144,110.42 = 56,682.97/x
  3. Step 3: Cross multiply
    104,430.64x = 144,110.42 × 56,682.97
  4. Step 4: Simplify right side
    104,430.64x = 8,168,606,613.55
  5. Step 5: Solve for x
    x = 8,168,606,613.55/104,430.64
  6. Step 6: Final answer
    x = 78,220.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.