Home / 109,189.64-163,480.34-55,765.94

Finding the Fourth Proportional to 109,189.64, 163,480.34 and 55,765.94

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Solution

The fourth proportional to 109,189.64, 163,480.34 and 55,765.94 is: 83,493.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,189.64 : 163,480.34 = 55,765.94 : x
  2. Step 2: Convert to fraction form
    109,189.64/163,480.34 = 55,765.94/x
  3. Step 3: Cross multiply
    109,189.64x = 163,480.34 × 55,765.94
  4. Step 4: Simplify right side
    109,189.64x = 9,116,634,831.62
  5. Step 5: Solve for x
    x = 9,116,634,831.62/109,189.64
  6. Step 6: Final answer
    x = 83,493.59

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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.