Home / 156,818.30-234,997.80-77,774.66

Finding the Fourth Proportional to 156,818.30, 234,997.80 and 77,774.66

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Solution

The fourth proportional to 156,818.30, 234,997.80 and 77,774.66 is: 116,548.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,818.30 : 234,997.80 = 77,774.66 : x
  2. Step 2: Convert to fraction form
    156,818.30/234,997.80 = 77,774.66/x
  3. Step 3: Cross multiply
    156,818.30x = 234,997.80 × 77,774.66
  4. Step 4: Simplify right side
    156,818.30x = 18,276,873,995.75
  5. Step 5: Solve for x
    x = 18,276,873,995.75/156,818.30
  6. Step 6: Final answer
    x = 116,548.09

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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.