Home / 118,440.12-163,455.12-66,769.96

Finding the Fourth Proportional to 118,440.12, 163,455.12 and 66,769.96

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Solution

The fourth proportional to 118,440.12, 163,455.12 and 66,769.96 is: 92,146.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,440.12 : 163,455.12 = 66,769.96 : x
  2. Step 2: Convert to fraction form
    118,440.12/163,455.12 = 66,769.96/x
  3. Step 3: Cross multiply
    118,440.12x = 163,455.12 × 66,769.96
  4. Step 4: Simplify right side
    118,440.12x = 10,913,891,824.20
  5. Step 5: Solve for x
    x = 10,913,891,824.20/118,440.12
  6. Step 6: Final answer
    x = 92,146.92

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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.