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Finding the Fourth Proportional to 123,614.37, 170,559.47 and 69,887.68

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Solution

The fourth proportional to 123,614.37, 170,559.47 and 69,887.68 is: 96,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,614.37 : 170,559.47 = 69,887.68 : x
  2. Step 2: Convert to fraction form
    123,614.37/170,559.47 = 69,887.68/x
  3. Step 3: Cross multiply
    123,614.37x = 170,559.47 × 69,887.68
  4. Step 4: Simplify right side
    123,614.37x = 11,920,005,408.65
  5. Step 5: Solve for x
    x = 11,920,005,408.65/123,614.37
  6. Step 6: Final answer
    x = 96,428.96

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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.