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Finding the Fourth Proportional to 108,065.80, 149,129.94 and 60,317.65

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Solution

The fourth proportional to 108,065.80, 149,129.94 and 60,317.65 is: 83,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,065.80 : 149,129.94 = 60,317.65 : x
  2. Step 2: Convert to fraction form
    108,065.80/149,129.94 = 60,317.65/x
  3. Step 3: Cross multiply
    108,065.80x = 149,129.94 × 60,317.65
  4. Step 4: Simplify right side
    108,065.80x = 8,995,167,525.44
  5. Step 5: Solve for x
    x = 8,995,167,525.44/108,065.80
  6. Step 6: Final answer
    x = 83,237.87

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1.5x scale

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.