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Finding the Fourth Proportional to 72,243.93, 108,907.34 and 67,427.13

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Solution

The fourth proportional to 72,243.93, 108,907.34 and 67,427.13 is: 101,646.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,243.93 : 108,907.34 = 67,427.13 : x
  2. Step 2: Convert to fraction form
    72,243.93/108,907.34 = 67,427.13/x
  3. Step 3: Cross multiply
    72,243.93x = 108,907.34 × 67,427.13
  4. Step 4: Simplify right side
    72,243.93x = 7,343,309,372.13
  5. Step 5: Solve for x
    x = 7,343,309,372.13/72,243.93
  6. Step 6: Final answer
    x = 101,646.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.