Home / 118,235.73-163,168.78-64,524.21

Finding the Fourth Proportional to 118,235.73, 163,168.78 and 64,524.21

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Solution

The fourth proportional to 118,235.73, 163,168.78 and 64,524.21 is: 89,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,235.73 : 163,168.78 = 64,524.21 : x
  2. Step 2: Convert to fraction form
    118,235.73/163,168.78 = 64,524.21/x
  3. Step 3: Cross multiply
    118,235.73x = 163,168.78 × 64,524.21
  4. Step 4: Simplify right side
    118,235.73x = 10,528,336,464.85
  5. Step 5: Solve for x
    x = 10,528,336,464.85/118,235.73
  6. Step 6: Final answer
    x = 89,045.30

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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.