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Finding the Third Proportional to 59,140.13 and 128,121.75

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Solution

The third proportional to 59,140.13 and 128,121.75 is: 277,564.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,140.13 : 128,121.75 = 128,121.75 : x
  2. Step 2: Convert to fraction form
    59,140.13/128,121.75 = 128,121.75/x
  3. Step 3: Cross multiply
    59,140.13x = 128,121.75 × 128,121.75
  4. Step 4: Simplify right side
    59,140.13x = 16,415,182,823.06
  5. Step 5: Solve for x
    x = 16,415,182,823.06/59,140.13
  6. Step 6: Final answer
    x = 277,564.22

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.