Home / 102,765.74-141,798.59-57,429.23

Finding the Fourth Proportional to 102,765.74, 141,798.59 and 57,429.23

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Solution

The fourth proportional to 102,765.74, 141,798.59 and 57,429.23 is: 79,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,765.74 : 141,798.59 = 57,429.23 : x
  2. Step 2: Convert to fraction form
    102,765.74/141,798.59 = 57,429.23/x
  3. Step 3: Cross multiply
    102,765.74x = 141,798.59 × 57,429.23
  4. Step 4: Simplify right side
    102,765.74x = 8,143,383,906.14
  5. Step 5: Solve for x
    x = 8,143,383,906.14/102,765.74
  6. Step 6: Final answer
    x = 79,242.20

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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.