Home / 102,949.18-142,065.03-58,228.54

Finding the Fourth Proportional to 102,949.18, 142,065.03 and 58,228.54

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Solution

The fourth proportional to 102,949.18, 142,065.03 and 58,228.54 is: 80,352.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,949.18 : 142,065.03 = 58,228.54 : x
  2. Step 2: Convert to fraction form
    102,949.18/142,065.03 = 58,228.54/x
  3. Step 3: Cross multiply
    102,949.18x = 142,065.03 × 58,228.54
  4. Step 4: Simplify right side
    102,949.18x = 8,272,239,281.96
  5. Step 5: Solve for x
    x = 8,272,239,281.96/102,949.18
  6. Step 6: Final answer
    x = 80,352.65

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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.