Home / 108,129.65-162,229.18-51,973.84

Finding the Fourth Proportional to 108,129.65, 162,229.18 and 51,973.84

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Solution

The fourth proportional to 108,129.65, 162,229.18 and 51,973.84 is: 77,977.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,129.65 : 162,229.18 = 51,973.84 : x
  2. Step 2: Convert to fraction form
    108,129.65/162,229.18 = 51,973.84/x
  3. Step 3: Cross multiply
    108,129.65x = 162,229.18 × 51,973.84
  4. Step 4: Simplify right side
    108,129.65x = 8,431,672,702.41
  5. Step 5: Solve for x
    x = 8,431,672,702.41/108,129.65
  6. Step 6: Final answer
    x = 77,977.43

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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.