Home / 100,884.02-139,214.61-57,861.27

Finding the Fourth Proportional to 100,884.02, 139,214.61 and 57,861.27

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Solution

The fourth proportional to 100,884.02, 139,214.61 and 57,861.27 is: 79,845.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,884.02 : 139,214.61 = 57,861.27 : x
  2. Step 2: Convert to fraction form
    100,884.02/139,214.61 = 57,861.27/x
  3. Step 3: Cross multiply
    100,884.02x = 139,214.61 × 57,861.27
  4. Step 4: Simplify right side
    100,884.02x = 8,055,134,659.21
  5. Step 5: Solve for x
    x = 8,055,134,659.21/100,884.02
  6. Step 6: Final answer
    x = 79,845.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.