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Finding the Third Proportional to 105,720.19 and 163,630.13

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Solution

The third proportional to 105,720.19 and 163,630.13 is: 253,261.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,720.19 : 163,630.13 = 163,630.13 : x
  2. Step 2: Convert to fraction form
    105,720.19/163,630.13 = 163,630.13/x
  3. Step 3: Cross multiply
    105,720.19x = 163,630.13 × 163,630.13
  4. Step 4: Simplify right side
    105,720.19x = 26,774,817,807.52
  5. Step 5: Solve for x
    x = 26,774,817,807.52/105,720.19
  6. Step 6: Final answer
    x = 253,261.16

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