Home / 104,677.12-156,956.21-71,437.45

Finding the Fourth Proportional to 104,677.12, 156,956.21 and 71,437.45

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Solution

The fourth proportional to 104,677.12, 156,956.21 and 71,437.45 is: 107,115.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,677.12 : 156,956.21 = 71,437.45 : x
  2. Step 2: Convert to fraction form
    104,677.12/156,956.21 = 71,437.45/x
  3. Step 3: Cross multiply
    104,677.12x = 156,956.21 × 71,437.45
  4. Step 4: Simplify right side
    104,677.12x = 11,212,550,262.10
  5. Step 5: Solve for x
    x = 11,212,550,262.10/104,677.12
  6. Step 6: Final answer
    x = 107,115.58

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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.