Home / 102,747.21-141,790.62-57,425.16

Finding the Fourth Proportional to 102,747.21, 141,790.62 and 57,425.16

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Solution

The fourth proportional to 102,747.21, 141,790.62 and 57,425.16 is: 79,246.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,747.21 : 141,790.62 = 57,425.16 : x
  2. Step 2: Convert to fraction form
    102,747.21/141,790.62 = 57,425.16/x
  3. Step 3: Cross multiply
    102,747.21x = 141,790.62 × 57,425.16
  4. Step 4: Simplify right side
    102,747.21x = 8,142,349,040.00
  5. Step 5: Solve for x
    x = 8,142,349,040.00/102,747.21
  6. Step 6: Final answer
    x = 79,246.42

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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.