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Finding the Fourth Proportional to 104,435.74, 156,513.29 and 56,979.72

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Solution

The fourth proportional to 104,435.74, 156,513.29 and 56,979.72 is: 85,393.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,435.74 : 156,513.29 = 56,979.72 : x
  2. Step 2: Convert to fraction form
    104,435.74/156,513.29 = 56,979.72/x
  3. Step 3: Cross multiply
    104,435.74x = 156,513.29 × 56,979.72
  4. Step 4: Simplify right side
    104,435.74x = 8,918,083,440.48
  5. Step 5: Solve for x
    x = 8,918,083,440.48/104,435.74
  6. Step 6: Final answer
    x = 85,393.02

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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.