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Finding the Third Proportional to 72,478.75 and 115,306.13

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Solution

The third proportional to 72,478.75 and 115,306.13 is: 183,440.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,478.75 : 115,306.13 = 115,306.13 : x
  2. Step 2: Convert to fraction form
    72,478.75/115,306.13 = 115,306.13/x
  3. Step 3: Cross multiply
    72,478.75x = 115,306.13 × 115,306.13
  4. Step 4: Simplify right side
    72,478.75x = 13,295,502,462.52
  5. Step 5: Solve for x
    x = 13,295,502,462.52/72,478.75
  6. Step 6: Final answer
    x = 183,440.01

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.