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Finding the Third Proportional to 87,426.84 and 128,271.94

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Solution

The third proportional to 87,426.84 and 128,271.94 is: 188,199.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,426.84 : 128,271.94 = 128,271.94 : x
  2. Step 2: Convert to fraction form
    87,426.84/128,271.94 = 128,271.94/x
  3. Step 3: Cross multiply
    87,426.84x = 128,271.94 × 128,271.94
  4. Step 4: Simplify right side
    87,426.84x = 16,453,689,950.00
  5. Step 5: Solve for x
    x = 16,453,689,950.00/87,426.84
  6. Step 6: Final answer
    x = 188,199.52

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.