Home / 100,761.66-151,161.93-56,438.46

Finding the Fourth Proportional to 100,761.66, 151,161.93 and 56,438.46

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Solution

The fourth proportional to 100,761.66, 151,161.93 and 56,438.46 is: 84,668.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,761.66 : 151,161.93 = 56,438.46 : x
  2. Step 2: Convert to fraction form
    100,761.66/151,161.93 = 56,438.46/x
  3. Step 3: Cross multiply
    100,761.66x = 151,161.93 × 56,438.46
  4. Step 4: Simplify right side
    100,761.66x = 8,531,346,539.83
  5. Step 5: Solve for x
    x = 8,531,346,539.83/100,761.66
  6. Step 6: Final answer
    x = 84,668.58

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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.