Home / 131,824.89-181,917.45-71,394.21

Finding the Fourth Proportional to 131,824.89, 181,917.45 and 71,394.21

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Solution

The fourth proportional to 131,824.89, 181,917.45 and 71,394.21 is: 98,523.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,824.89 : 181,917.45 = 71,394.21 : x
  2. Step 2: Convert to fraction form
    131,824.89/181,917.45 = 71,394.21/x
  3. Step 3: Cross multiply
    131,824.89x = 181,917.45 × 71,394.21
  4. Step 4: Simplify right side
    131,824.89x = 12,987,852,627.96
  5. Step 5: Solve for x
    x = 12,987,852,627.96/131,824.89
  6. Step 6: Final answer
    x = 98,523.52

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1.5x scale

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.