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Finding the Fourth Proportional to 118,420.44, 163,420.25 and 63,972.63

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Solution

The fourth proportional to 118,420.44, 163,420.25 and 63,972.63 is: 88,282.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,420.44 : 163,420.25 = 63,972.63 : x
  2. Step 2: Convert to fraction form
    118,420.44/163,420.25 = 63,972.63/x
  3. Step 3: Cross multiply
    118,420.44x = 163,420.25 × 63,972.63
  4. Step 4: Simplify right side
    118,420.44x = 10,454,422,867.89
  5. Step 5: Solve for x
    x = 10,454,422,867.89/118,420.44
  6. Step 6: Final answer
    x = 88,282.25

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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.