Home / 135,810.30-203,715.45-107,816.70

Finding the Fourth Proportional to 135,810.30, 203,715.45 and 107,816.70

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Solution

The fourth proportional to 135,810.30, 203,715.45 and 107,816.70 is: 161,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,810.30 : 203,715.45 = 107,816.70 : x
  2. Step 2: Convert to fraction form
    135,810.30/203,715.45 = 107,816.70/x
  3. Step 3: Cross multiply
    135,810.30x = 203,715.45 × 107,816.70
  4. Step 4: Simplify right side
    135,810.30x = 21,963,927,558.02
  5. Step 5: Solve for x
    x = 21,963,927,558.02/135,810.30
  6. Step 6: Final answer
    x = 161,725.05

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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.