Home / 118,258.30-163,200-64,546.84

Finding the Fourth Proportional to 118,258.30, 163,200 and 64,546.84

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Solution

The fourth proportional to 118,258.30, 163,200 and 64,546.84 is: 89,076.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,258.30 : 163,200 = 64,546.84 : x
  2. Step 2: Convert to fraction form
    118,258.30/163,200 = 64,546.84/x
  3. Step 3: Cross multiply
    118,258.30x = 163,200 × 64,546.84
  4. Step 4: Simplify right side
    118,258.30x = 10,534,044,288
  5. Step 5: Solve for x
    x = 10,534,044,288/118,258.30
  6. Step 6: Final answer
    x = 89,076.57

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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.