Home / 107,723.84-161,510.81-47,719.76

Finding the Fourth Proportional to 107,723.84, 161,510.81 and 47,719.76

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Solution

The fourth proportional to 107,723.84, 161,510.81 and 47,719.76 is: 71,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,723.84 : 161,510.81 = 47,719.76 : x
  2. Step 2: Convert to fraction form
    107,723.84/161,510.81 = 47,719.76/x
  3. Step 3: Cross multiply
    107,723.84x = 161,510.81 × 47,719.76
  4. Step 4: Simplify right side
    107,723.84x = 7,707,256,044.45
  5. Step 5: Solve for x
    x = 7,707,256,044.45/107,723.84
  6. Step 6: Final answer
    x = 71,546.43

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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.