Home / 118,770.97-163,904-65,056.88

Finding the Fourth Proportional to 118,770.97, 163,904 and 65,056.88

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Solution

The fourth proportional to 118,770.97, 163,904 and 65,056.88 is: 89,778.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,770.97 : 163,904 = 65,056.88 : x
  2. Step 2: Convert to fraction form
    118,770.97/163,904 = 65,056.88/x
  3. Step 3: Cross multiply
    118,770.97x = 163,904 × 65,056.88
  4. Step 4: Simplify right side
    118,770.97x = 10,663,082,859.52
  5. Step 5: Solve for x
    x = 10,663,082,859.52/118,770.97
  6. Step 6: Final answer
    x = 89,778.53

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1.5x scale

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.