Home / 100,996.55-151,459.40-55,395.09

Finding the Fourth Proportional to 100,996.55, 151,459.40 and 55,395.09

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Solution

The fourth proportional to 100,996.55, 151,459.40 and 55,395.09 is: 83,073.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,996.55 : 151,459.40 = 55,395.09 : x
  2. Step 2: Convert to fraction form
    100,996.55/151,459.40 = 55,395.09/x
  3. Step 3: Cross multiply
    100,996.55x = 151,459.40 × 55,395.09
  4. Step 4: Simplify right side
    100,996.55x = 8,390,106,817.37
  5. Step 5: Solve for x
    x = 8,390,106,817.37/100,996.55
  6. Step 6: Final answer
    x = 83,073.21

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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.