Home / 100,830.60-151,194.87-56,445.43

Finding the Fourth Proportional to 100,830.60, 151,194.87 and 56,445.43

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Solution

The fourth proportional to 100,830.60, 151,194.87 and 56,445.43 is: 84,639.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,830.60 : 151,194.87 = 56,445.43 : x
  2. Step 2: Convert to fraction form
    100,830.60/151,194.87 = 56,445.43/x
  3. Step 3: Cross multiply
    100,830.60x = 151,194.87 × 56,445.43
  4. Step 4: Simplify right side
    100,830.60x = 8,534,259,450.94
  5. Step 5: Solve for x
    x = 8,534,259,450.94/100,830.60
  6. Step 6: Final answer
    x = 84,639.58

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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.