Home / 185,971.50-279,969.30-169,437.78

Finding the Fourth Proportional to 185,971.50, 279,969.30 and 169,437.78

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Solution

The fourth proportional to 185,971.50, 279,969.30 and 169,437.78 is: 255,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,971.50 : 279,969.30 = 169,437.78 : x
  2. Step 2: Convert to fraction form
    185,971.50/279,969.30 = 169,437.78/x
  3. Step 3: Cross multiply
    185,971.50x = 279,969.30 × 169,437.78
  4. Step 4: Simplify right side
    185,971.50x = 47,437,376,660.15
  5. Step 5: Solve for x
    x = 47,437,376,660.15/185,971.50
  6. Step 6: Final answer
    x = 255,078.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.