Home / 108,834.44-150,142.02-72,987.08

Finding the Fourth Proportional to 108,834.44, 150,142.02 and 72,987.08

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Solution

The fourth proportional to 108,834.44, 150,142.02 and 72,987.08 is: 100,688.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,834.44 : 150,142.02 = 72,987.08 : x
  2. Step 2: Convert to fraction form
    108,834.44/150,142.02 = 72,987.08/x
  3. Step 3: Cross multiply
    108,834.44x = 150,142.02 × 72,987.08
  4. Step 4: Simplify right side
    108,834.44x = 10,958,427,625.10
  5. Step 5: Solve for x
    x = 10,958,427,625.10/108,834.44
  6. Step 6: Final answer
    x = 100,688.97

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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.