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Finding the Fourth Proportional to 109,337.60, 164,006.40 and 82,899.20

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Solution

The fourth proportional to 109,337.60, 164,006.40 and 82,899.20 is: 124,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,337.60 : 164,006.40 = 82,899.20 : x
  2. Step 2: Convert to fraction form
    109,337.60/164,006.40 = 82,899.20/x
  3. Step 3: Cross multiply
    109,337.60x = 164,006.40 × 82,899.20
  4. Step 4: Simplify right side
    109,337.60x = 13,595,999,354.88
  5. Step 5: Solve for x
    x = 13,595,999,354.88/109,337.60
  6. Step 6: Final answer
    x = 124,348.80

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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.