Home / 105,381.96-145,360.62-73,539.24

Finding the Fourth Proportional to 105,381.96, 145,360.62 and 73,539.24

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Solution

The fourth proportional to 105,381.96, 145,360.62 and 73,539.24 is: 101,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,381.96 : 145,360.62 = 73,539.24 : x
  2. Step 2: Convert to fraction form
    105,381.96/145,360.62 = 73,539.24/x
  3. Step 3: Cross multiply
    105,381.96x = 145,360.62 × 73,539.24
  4. Step 4: Simplify right side
    105,381.96x = 10,689,709,520.73
  5. Step 5: Solve for x
    x = 10,689,709,520.73/105,381.96
  6. Step 6: Final answer
    x = 101,437.76

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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.