Home / 197,812.64-272,981.09-107,170.89

Finding the Fourth Proportional to 197,812.64, 272,981.09 and 107,170.89

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Solution

The fourth proportional to 197,812.64, 272,981.09 and 107,170.89 is: 147,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,812.64 : 272,981.09 = 107,170.89 : x
  2. Step 2: Convert to fraction form
    197,812.64/272,981.09 = 107,170.89/x
  3. Step 3: Cross multiply
    197,812.64x = 272,981.09 × 107,170.89
  4. Step 4: Simplify right side
    197,812.64x = 29,255,625,832.62
  5. Step 5: Solve for x
    x = 29,255,625,832.62/197,812.64
  6. Step 6: Final answer
    x = 147,895.64

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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.