Home / 68,165.15-102,261.54-28,722.25

Finding the Fourth Proportional to 68,165.15, 102,261.54 and 28,722.25

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Solution

The fourth proportional to 68,165.15, 102,261.54 and 28,722.25 is: 43,089.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,165.15 : 102,261.54 = 28,722.25 : x
  2. Step 2: Convert to fraction form
    68,165.15/102,261.54 = 28,722.25/x
  3. Step 3: Cross multiply
    68,165.15x = 102,261.54 × 28,722.25
  4. Step 4: Simplify right side
    68,165.15x = 2,937,181,016.02
  5. Step 5: Solve for x
    x = 2,937,181,016.02/68,165.15
  6. Step 6: Final answer
    x = 43,089.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.