Home / 118,682.62-163,782-64,967.67

Finding the Fourth Proportional to 118,682.62, 163,782 and 64,967.67

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Solution

The fourth proportional to 118,682.62, 163,782 and 64,967.67 is: 89,655.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,682.62 : 163,782 = 64,967.67 : x
  2. Step 2: Convert to fraction form
    118,682.62/163,782 = 64,967.67/x
  3. Step 3: Cross multiply
    118,682.62x = 163,782 × 64,967.67
  4. Step 4: Simplify right side
    118,682.62x = 10,640,534,927.94
  5. Step 5: Solve for x
    x = 10,640,534,927.94/118,682.62
  6. Step 6: Final answer
    x = 89,655.38

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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.