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Finding the Fourth Proportional to 118,599.12, 163,801.16 and 80,807.76

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Solution

The fourth proportional to 118,599.12, 163,801.16 and 80,807.76 is: 111,606.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,599.12 : 163,801.16 = 80,807.76 : x
  2. Step 2: Convert to fraction form
    118,599.12/163,801.16 = 80,807.76/x
  3. Step 3: Cross multiply
    118,599.12x = 163,801.16 × 80,807.76
  4. Step 4: Simplify right side
    118,599.12x = 13,236,404,825.00
  5. Step 5: Solve for x
    x = 13,236,404,825.00/118,599.12
  6. Step 6: Final answer
    x = 111,606.27

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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.