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Finding the Fourth Proportional to 156,687.93, 234,871 and 61,879.68

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Solution

The fourth proportional to 156,687.93, 234,871 and 61,879.68 is: 92,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,687.93 : 234,871 = 61,879.68 : x
  2. Step 2: Convert to fraction form
    156,687.93/234,871 = 61,879.68/x
  3. Step 3: Cross multiply
    156,687.93x = 234,871 × 61,879.68
  4. Step 4: Simplify right side
    156,687.93x = 14,533,742,321.28
  5. Step 5: Solve for x
    x = 14,533,742,321.28/156,687.93
  6. Step 6: Final answer
    x = 92,755.98

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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.