Home / 131,144.90-196,568.51-115,319.32

Finding the Fourth Proportional to 131,144.90, 196,568.51 and 115,319.32

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Solution

The fourth proportional to 131,144.90, 196,568.51 and 115,319.32 is: 172,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,144.90 : 196,568.51 = 115,319.32 : x
  2. Step 2: Convert to fraction form
    131,144.90/196,568.51 = 115,319.32/x
  3. Step 3: Cross multiply
    131,144.90x = 196,568.51 × 115,319.32
  4. Step 4: Simplify right side
    131,144.90x = 22,668,145,838.60
  5. Step 5: Solve for x
    x = 22,668,145,838.60/131,144.90
  6. Step 6: Final answer
    x = 172,848.10

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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.