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Finding the Fourth Proportional to 118,611.30, 163,682.12 and 64,895.54

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Solution

The fourth proportional to 118,611.30, 163,682.12 and 64,895.54 is: 89,555.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,611.30 : 163,682.12 = 64,895.54 : x
  2. Step 2: Convert to fraction form
    118,611.30/163,682.12 = 64,895.54/x
  3. Step 3: Cross multiply
    118,611.30x = 163,682.12 × 64,895.54
  4. Step 4: Simplify right side
    118,611.30x = 10,622,239,565.74
  5. Step 5: Solve for x
    x = 10,622,239,565.74/118,611.30
  6. Step 6: Final answer
    x = 89,555.04

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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.