Home / 172,668.62-259,038.09-72,829.18

Finding the Fourth Proportional to 172,668.62, 259,038.09 and 72,829.18

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Solution

The fourth proportional to 172,668.62, 259,038.09 and 72,829.18 is: 109,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,668.62 : 259,038.09 = 72,829.18 : x
  2. Step 2: Convert to fraction form
    172,668.62/259,038.09 = 72,829.18/x
  3. Step 3: Cross multiply
    172,668.62x = 259,038.09 × 72,829.18
  4. Step 4: Simplify right side
    172,668.62x = 18,865,531,319.32
  5. Step 5: Solve for x
    x = 18,865,531,319.32/172,668.62
  6. Step 6: Final answer
    x = 109,258.60

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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.