Home / 131,936.54-182,074.63-71,509.12

Finding the Fourth Proportional to 131,936.54, 182,074.63 and 71,509.12

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Solution

The fourth proportional to 131,936.54, 182,074.63 and 71,509.12 is: 98,683.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,936.54 : 182,074.63 = 71,509.12 : x
  2. Step 2: Convert to fraction form
    131,936.54/182,074.63 = 71,509.12/x
  3. Step 3: Cross multiply
    131,936.54x = 182,074.63 × 71,509.12
  4. Step 4: Simplify right side
    131,936.54x = 13,019,996,565.63
  5. Step 5: Solve for x
    x = 13,019,996,565.63/131,936.54
  6. Step 6: Final answer
    x = 98,683.78

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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.