Home / 161,712.18-242,615.07-66,924.87

Finding the Fourth Proportional to 161,712.18, 242,615.07 and 66,924.87

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Solution

The fourth proportional to 161,712.18, 242,615.07 and 66,924.87 is: 100,406.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,712.18 : 242,615.07 = 66,924.87 : x
  2. Step 2: Convert to fraction form
    161,712.18/242,615.07 = 66,924.87/x
  3. Step 3: Cross multiply
    161,712.18x = 242,615.07 × 66,924.87
  4. Step 4: Simplify right side
    161,712.18x = 16,236,982,019.79
  5. Step 5: Solve for x
    x = 16,236,982,019.79/161,712.18
  6. Step 6: Final answer
    x = 100,406.67

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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.