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Finding the Fourth Proportional to 102,873.97, 141,969.11 and 57,550.91

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Solution

The fourth proportional to 102,873.97, 141,969.11 and 57,550.91 is: 79,421.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,873.97 : 141,969.11 = 57,550.91 : x
  2. Step 2: Convert to fraction form
    102,873.97/141,969.11 = 57,550.91/x
  3. Step 3: Cross multiply
    102,873.97x = 141,969.11 × 57,550.91
  4. Step 4: Simplify right side
    102,873.97x = 8,170,450,474.79
  5. Step 5: Solve for x
    x = 8,170,450,474.79/102,873.97
  6. Step 6: Final answer
    x = 79,421.94

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1.5x scale

Why These Related Problems?

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