Home / 108,475.80-149,692.20-63,155.10

Finding the Fourth Proportional to 108,475.80, 149,692.20 and 63,155.10

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Solution

The fourth proportional to 108,475.80, 149,692.20 and 63,155.10 is: 87,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,475.80 : 149,692.20 = 63,155.10 : x
  2. Step 2: Convert to fraction form
    108,475.80/149,692.20 = 63,155.10/x
  3. Step 3: Cross multiply
    108,475.80x = 149,692.20 × 63,155.10
  4. Step 4: Simplify right side
    108,475.80x = 9,453,825,860.22
  5. Step 5: Solve for x
    x = 9,453,825,860.22/108,475.80
  6. Step 6: Final answer
    x = 87,151.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.