Home / 156,003.40-234,005.10-77,101.30

Finding the Fourth Proportional to 156,003.40, 234,005.10 and 77,101.30

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Solution

The fourth proportional to 156,003.40, 234,005.10 and 77,101.30 is: 115,651.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,003.40 : 234,005.10 = 77,101.30 : x
  2. Step 2: Convert to fraction form
    156,003.40/234,005.10 = 77,101.30/x
  3. Step 3: Cross multiply
    156,003.40x = 234,005.10 × 77,101.30
  4. Step 4: Simplify right side
    156,003.40x = 18,042,097,416.63
  5. Step 5: Solve for x
    x = 18,042,097,416.63/156,003.40
  6. Step 6: Final answer
    x = 115,651.95

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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.