Home / 101,343.12-152,079.96-54,628.56

Finding the Fourth Proportional to 101,343.12, 152,079.96 and 54,628.56

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Solution

The fourth proportional to 101,343.12, 152,079.96 and 54,628.56 is: 81,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,343.12 : 152,079.96 = 54,628.56 : x
  2. Step 2: Convert to fraction form
    101,343.12/152,079.96 = 54,628.56/x
  3. Step 3: Cross multiply
    101,343.12x = 152,079.96 × 54,628.56
  4. Step 4: Simplify right side
    101,343.12x = 8,307,909,219.66
  5. Step 5: Solve for x
    x = 8,307,909,219.66/101,343.12
  6. Step 6: Final answer
    x = 81,978.03

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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.