Home / 118,520.32-163,575.84-68,209.60

Finding the Fourth Proportional to 118,520.32, 163,575.84 and 68,209.60

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Solution

The fourth proportional to 118,520.32, 163,575.84 and 68,209.60 is: 94,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,520.32 : 163,575.84 = 68,209.60 : x
  2. Step 2: Convert to fraction form
    118,520.32/163,575.84 = 68,209.60/x
  3. Step 3: Cross multiply
    118,520.32x = 163,575.84 × 68,209.60
  4. Step 4: Simplify right side
    118,520.32x = 11,157,442,616.06
  5. Step 5: Solve for x
    x = 11,157,442,616.06/118,520.32
  6. Step 6: Final answer
    x = 94,139.49

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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.