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Finding the Third Proportional to 58,681 and 128,114.50

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Solution

The third proportional to 58,681 and 128,114.50 is: 279,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,681 : 128,114.50 = 128,114.50 : x
  2. Step 2: Convert to fraction form
    58,681/128,114.50 = 128,114.50/x
  3. Step 3: Cross multiply
    58,681x = 128,114.50 × 128,114.50
  4. Step 4: Simplify right side
    58,681x = 16,413,325,110.25
  5. Step 5: Solve for x
    x = 16,413,325,110.25/58,681
  6. Step 6: Final answer
    x = 279,704.25

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.