Home / 118,598.12-163,799.78-80,806.76

Finding the Fourth Proportional to 118,598.12, 163,799.78 and 80,806.76

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Solution

The fourth proportional to 118,598.12, 163,799.78 and 80,806.76 is: 111,604.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,598.12 : 163,799.78 = 80,806.76 : x
  2. Step 2: Convert to fraction form
    118,598.12/163,799.78 = 80,806.76/x
  3. Step 3: Cross multiply
    118,598.12x = 163,799.78 × 80,806.76
  4. Step 4: Simplify right side
    118,598.12x = 13,236,129,510.51
  5. Step 5: Solve for x
    x = 13,236,129,510.51/118,598.12
  6. Step 6: Final answer
    x = 111,604.88

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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.