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Finding the Fourth Proportional to 108,314.96, 162,031.80 and 91,570.64

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Solution

The fourth proportional to 108,314.96, 162,031.80 and 91,570.64 is: 136,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,314.96 : 162,031.80 = 91,570.64 : x
  2. Step 2: Convert to fraction form
    108,314.96/162,031.80 = 91,570.64/x
  3. Step 3: Cross multiply
    108,314.96x = 162,031.80 × 91,570.64
  4. Step 4: Simplify right side
    108,314.96x = 14,837,355,626.35
  5. Step 5: Solve for x
    x = 14,837,355,626.35/108,314.96
  6. Step 6: Final answer
    x = 136,983.44

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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.