Home / 252,012.54-378,025.29-72,124.50

Finding the Fourth Proportional to 252,012.54, 378,025.29 and 72,124.50

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Solution

The fourth proportional to 252,012.54, 378,025.29 and 72,124.50 is: 108,188.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,012.54 : 378,025.29 = 72,124.50 : x
  2. Step 2: Convert to fraction form
    252,012.54/378,025.29 = 72,124.50/x
  3. Step 3: Cross multiply
    252,012.54x = 378,025.29 × 72,124.50
  4. Step 4: Simplify right side
    252,012.54x = 27,264,885,028.61
  5. Step 5: Solve for x
    x = 27,264,885,028.61/252,012.54
  6. Step 6: Final answer
    x = 108,188.60

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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.