Home / 118,159.76-163,064.79-67,181.06

Finding the Fourth Proportional to 118,159.76, 163,064.79 and 67,181.06

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Solution

The fourth proportional to 118,159.76, 163,064.79 and 67,181.06 is: 92,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,159.76 : 163,064.79 = 67,181.06 : x
  2. Step 2: Convert to fraction form
    118,159.76/163,064.79 = 67,181.06/x
  3. Step 3: Cross multiply
    118,159.76x = 163,064.79 × 67,181.06
  4. Step 4: Simplify right side
    118,159.76x = 10,954,864,625.55
  5. Step 5: Solve for x
    x = 10,954,864,625.55/118,159.76
  6. Step 6: Final answer
    x = 92,712.32

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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.