Home / 102,828.40-141,902.18-57,505.86

Finding the Fourth Proportional to 102,828.40, 141,902.18 and 57,505.86

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Solution

The fourth proportional to 102,828.40, 141,902.18 and 57,505.86 is: 79,357.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,828.40 : 141,902.18 = 57,505.86 : x
  2. Step 2: Convert to fraction form
    102,828.40/141,902.18 = 57,505.86/x
  3. Step 3: Cross multiply
    102,828.40x = 141,902.18 × 57,505.86
  4. Step 4: Simplify right side
    102,828.40x = 8,160,206,896.77
  5. Step 5: Solve for x
    x = 8,160,206,896.77/102,828.40
  6. Step 6: Final answer
    x = 79,357.52

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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.