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Finding the Third Proportional to 90,721.13 and 144,125.44

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Solution

The third proportional to 90,721.13 and 144,125.44 is: 228,966.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,721.13 : 144,125.44 = 144,125.44 : x
  2. Step 2: Convert to fraction form
    90,721.13/144,125.44 = 144,125.44/x
  3. Step 3: Cross multiply
    90,721.13x = 144,125.44 × 144,125.44
  4. Step 4: Simplify right side
    90,721.13x = 20,772,141,734.57
  5. Step 5: Solve for x
    x = 20,772,141,734.57/90,721.13
  6. Step 6: Final answer
    x = 228,966.98

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1.5x scale

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.