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Finding the Fourth Proportional to 118,120.66, 163,046.01 and 70,388.98

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Solution

The fourth proportional to 118,120.66, 163,046.01 and 70,388.98 is: 97,160.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,120.66 : 163,046.01 = 70,388.98 : x
  2. Step 2: Convert to fraction form
    118,120.66/163,046.01 = 70,388.98/x
  3. Step 3: Cross multiply
    118,120.66x = 163,046.01 × 70,388.98
  4. Step 4: Simplify right side
    118,120.66x = 11,476,642,336.97
  5. Step 5: Solve for x
    x = 11,476,642,336.97/118,120.66
  6. Step 6: Final answer
    x = 97,160.33

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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.