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Finding the Fourth Proportional to 121,333.40, 182,000.10 and 108,648.80

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Solution

The fourth proportional to 121,333.40, 182,000.10 and 108,648.80 is: 162,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,333.40 : 182,000.10 = 108,648.80 : x
  2. Step 2: Convert to fraction form
    121,333.40/182,000.10 = 108,648.80/x
  3. Step 3: Cross multiply
    121,333.40x = 182,000.10 × 108,648.80
  4. Step 4: Simplify right side
    121,333.40x = 19,774,092,464.88
  5. Step 5: Solve for x
    x = 19,774,092,464.88/121,333.40
  6. Step 6: Final answer
    x = 162,973.20

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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.