Home / 118,520.34-163,558.22-64,805.60

Finding the Fourth Proportional to 118,520.34, 163,558.22 and 64,805.60

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Solution

The fourth proportional to 118,520.34, 163,558.22 and 64,805.60 is: 89,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,520.34 : 163,558.22 = 64,805.60 : x
  2. Step 2: Convert to fraction form
    118,520.34/163,558.22 = 64,805.60/x
  3. Step 3: Cross multiply
    118,520.34x = 163,558.22 × 64,805.60
  4. Step 4: Simplify right side
    118,520.34x = 10,599,487,440.21
  5. Step 5: Solve for x
    x = 10,599,487,440.21/118,520.34
  6. Step 6: Final answer
    x = 89,431.80

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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.