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Finding the Third Proportional to 78,008.06 and 121,024.13

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Solution

The third proportional to 78,008.06 and 121,024.13 is: 187,760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,008.06 : 121,024.13 = 121,024.13 : x
  2. Step 2: Convert to fraction form
    78,008.06/121,024.13 = 121,024.13/x
  3. Step 3: Cross multiply
    78,008.06x = 121,024.13 × 121,024.13
  4. Step 4: Simplify right side
    78,008.06x = 14,646,838,832.02
  5. Step 5: Solve for x
    x = 14,646,838,832.02/78,008.06
  6. Step 6: Final answer
    x = 187,760.58

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.