Home / 102,828.90-141,902.87-57,506.36

Finding the Fourth Proportional to 102,828.90, 141,902.87 and 57,506.36

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Solution

The fourth proportional to 102,828.90, 141,902.87 and 57,506.36 is: 79,358.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,828.90 : 141,902.87 = 57,506.36 : x
  2. Step 2: Convert to fraction form
    102,828.90/141,902.87 = 57,506.36/x
  3. Step 3: Cross multiply
    102,828.90x = 141,902.87 × 57,506.36
  4. Step 4: Simplify right side
    102,828.90x = 8,160,317,527.25
  5. Step 5: Solve for x
    x = 8,160,317,527.25/102,828.90
  6. Step 6: Final answer
    x = 79,358.21

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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.