Home / 117,459.18-162,092.78-63,742.80

Finding the Fourth Proportional to 117,459.18, 162,092.78 and 63,742.80

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Solution

The fourth proportional to 117,459.18, 162,092.78 and 63,742.80 is: 87,964.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,459.18 : 162,092.78 = 63,742.80 : x
  2. Step 2: Convert to fraction form
    117,459.18/162,092.78 = 63,742.80/x
  3. Step 3: Cross multiply
    117,459.18x = 162,092.78 × 63,742.80
  4. Step 4: Simplify right side
    117,459.18x = 10,332,247,656.98
  5. Step 5: Solve for x
    x = 10,332,247,656.98/117,459.18
  6. Step 6: Final answer
    x = 87,964.58

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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.