Home / 345,828.88-518,699.58-93,129.54

Finding the Fourth Proportional to 345,828.88, 518,699.58 and 93,129.54

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Solution

The fourth proportional to 345,828.88, 518,699.58 and 93,129.54 is: 139,682.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,828.88 : 518,699.58 = 93,129.54 : x
  2. Step 2: Convert to fraction form
    345,828.88/518,699.58 = 93,129.54/x
  3. Step 3: Cross multiply
    345,828.88x = 518,699.58 × 93,129.54
  4. Step 4: Simplify right side
    345,828.88x = 48,306,253,283.59
  5. Step 5: Solve for x
    x = 48,306,253,283.59/345,828.88
  6. Step 6: Final answer
    x = 139,682.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.