Home / 105,153.22-144,857.46-89,997.40

Finding the Fourth Proportional to 105,153.22, 144,857.46 and 89,997.40

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Solution

The fourth proportional to 105,153.22, 144,857.46 and 89,997.40 is: 123,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,153.22 : 144,857.46 = 89,997.40 : x
  2. Step 2: Convert to fraction form
    105,153.22/144,857.46 = 89,997.40/x
  3. Step 3: Cross multiply
    105,153.22x = 144,857.46 × 89,997.40
  4. Step 4: Simplify right side
    105,153.22x = 13,036,794,770.60
  5. Step 5: Solve for x
    x = 13,036,794,770.60/105,153.22
  6. Step 6: Final answer
    x = 123,979.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.