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Finding the Third Proportional to 72,438.05 and 110,810.53

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Solution

The third proportional to 72,438.05 and 110,810.53 is: 169,510.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,438.05 : 110,810.53 = 110,810.53 : x
  2. Step 2: Convert to fraction form
    72,438.05/110,810.53 = 110,810.53/x
  3. Step 3: Cross multiply
    72,438.05x = 110,810.53 × 110,810.53
  4. Step 4: Simplify right side
    72,438.05x = 12,278,973,835.91
  5. Step 5: Solve for x
    x = 12,278,973,835.91/72,438.05
  6. Step 6: Final answer
    x = 169,510.01

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.