Home / 135,799.16-203,698.72-72,427.29

Finding the Fourth Proportional to 135,799.16, 203,698.72 and 72,427.29

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Solution

The fourth proportional to 135,799.16, 203,698.72 and 72,427.29 is: 108,640.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,799.16 : 203,698.72 = 72,427.29 : x
  2. Step 2: Convert to fraction form
    135,799.16/203,698.72 = 72,427.29/x
  3. Step 3: Cross multiply
    135,799.16x = 203,698.72 × 72,427.29
  4. Step 4: Simplify right side
    135,799.16x = 14,753,346,085.00
  5. Step 5: Solve for x
    x = 14,753,346,085.00/135,799.16
  6. Step 6: Final answer
    x = 108,640.93

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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.