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Finding the Fourth Proportional to 156,987.75, 235,489.77 and 51,814.92

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Solution

The fourth proportional to 156,987.75, 235,489.77 and 51,814.92 is: 77,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.75 : 235,489.77 = 51,814.92 : x
  2. Step 2: Convert to fraction form
    156,987.75/235,489.77 = 51,814.92/x
  3. Step 3: Cross multiply
    156,987.75x = 235,489.77 × 51,814.92
  4. Step 4: Simplify right side
    156,987.75x = 12,201,883,593.37
  5. Step 5: Solve for x
    x = 12,201,883,593.37/156,987.75
  6. Step 6: Final answer
    x = 77,725.07

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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.