Home / 102,661.29-141,671.09-57,339.92

Finding the Fourth Proportional to 102,661.29, 141,671.09 and 57,339.92

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Solution

The fourth proportional to 102,661.29, 141,671.09 and 57,339.92 is: 79,128.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,661.29 : 141,671.09 = 57,339.92 : x
  2. Step 2: Convert to fraction form
    102,661.29/141,671.09 = 57,339.92/x
  3. Step 3: Cross multiply
    102,661.29x = 141,671.09 × 57,339.92
  4. Step 4: Simplify right side
    102,661.29x = 8,123,409,034.39
  5. Step 5: Solve for x
    x = 8,123,409,034.39/102,661.29
  6. Step 6: Final answer
    x = 79,128.26

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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.