Home / 125,241.76-172,828.20-74,968.48

Finding the Fourth Proportional to 125,241.76, 172,828.20 and 74,968.48

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Solution

The fourth proportional to 125,241.76, 172,828.20 and 74,968.48 is: 103,453.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,241.76 : 172,828.20 = 74,968.48 : x
  2. Step 2: Convert to fraction form
    125,241.76/172,828.20 = 74,968.48/x
  3. Step 3: Cross multiply
    125,241.76x = 172,828.20 × 74,968.48
  4. Step 4: Simplify right side
    125,241.76x = 12,956,667,455.14
  5. Step 5: Solve for x
    x = 12,956,667,455.14/125,241.76
  6. Step 6: Final answer
    x = 103,453.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.