Home / 169,243.47-253,799.58-90,314.64

Finding the Fourth Proportional to 169,243.47, 253,799.58 and 90,314.64

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Solution

The fourth proportional to 169,243.47, 253,799.58 and 90,314.64 is: 135,436.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,243.47 : 253,799.58 = 90,314.64 : x
  2. Step 2: Convert to fraction form
    169,243.47/253,799.58 = 90,314.64/x
  3. Step 3: Cross multiply
    169,243.47x = 253,799.58 × 90,314.64
  4. Step 4: Simplify right side
    169,243.47x = 22,921,817,699.85
  5. Step 5: Solve for x
    x = 22,921,817,699.85/169,243.47
  6. Step 6: Final answer
    x = 135,436.94

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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.