Home / 131,328.74-196,634.54-99,213.71

Finding the Fourth Proportional to 131,328.74, 196,634.54 and 99,213.71

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Solution

The fourth proportional to 131,328.74, 196,634.54 and 99,213.71 is: 148,549.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,328.74 : 196,634.54 = 99,213.71 : x
  2. Step 2: Convert to fraction form
    131,328.74/196,634.54 = 99,213.71/x
  3. Step 3: Cross multiply
    131,328.74x = 196,634.54 × 99,213.71
  4. Step 4: Simplify right side
    131,328.74x = 19,508,842,040.40
  5. Step 5: Solve for x
    x = 19,508,842,040.40/131,328.74
  6. Step 6: Final answer
    x = 148,549.68

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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.