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Finding the Fourth Proportional to 116,641.80, 174,962.70 and 80,872.20

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Solution

The fourth proportional to 116,641.80, 174,962.70 and 80,872.20 is: 121,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,641.80 : 174,962.70 = 80,872.20 : x
  2. Step 2: Convert to fraction form
    116,641.80/174,962.70 = 80,872.20/x
  3. Step 3: Cross multiply
    116,641.80x = 174,962.70 × 80,872.20
  4. Step 4: Simplify right side
    116,641.80x = 14,149,618,466.94
  5. Step 5: Solve for x
    x = 14,149,618,466.94/116,641.80
  6. Step 6: Final answer
    x = 121,308.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.