Home / 108,606.74-162,937.25-76,648.21

Finding the Fourth Proportional to 108,606.74, 162,937.25 and 76,648.21

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Solution

The fourth proportional to 108,606.74, 162,937.25 and 76,648.21 is: 114,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,606.74 : 162,937.25 = 76,648.21 : x
  2. Step 2: Convert to fraction form
    108,606.74/162,937.25 = 76,648.21/x
  3. Step 3: Cross multiply
    108,606.74x = 162,937.25 × 76,648.21
  4. Step 4: Simplify right side
    108,606.74x = 12,488,848,554.82
  5. Step 5: Solve for x
    x = 12,488,848,554.82/108,606.74
  6. Step 6: Final answer
    x = 114,991.47

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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.