Home / 107,817.10-161,725.65-82,905.10

Finding the Fourth Proportional to 107,817.10, 161,725.65 and 82,905.10

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Solution

The fourth proportional to 107,817.10, 161,725.65 and 82,905.10 is: 124,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,817.10 : 161,725.65 = 82,905.10 : x
  2. Step 2: Convert to fraction form
    107,817.10/161,725.65 = 82,905.10/x
  3. Step 3: Cross multiply
    107,817.10x = 161,725.65 × 82,905.10
  4. Step 4: Simplify right side
    107,817.10x = 13,407,881,185.82
  5. Step 5: Solve for x
    x = 13,407,881,185.82/107,817.10
  6. Step 6: Final answer
    x = 124,357.65

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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.