Home / 149,056.02-205,699.96-81,074.48

Finding the Fourth Proportional to 149,056.02, 205,699.96 and 81,074.48

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Solution

The fourth proportional to 149,056.02, 205,699.96 and 81,074.48 is: 111,884.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,056.02 : 205,699.96 = 81,074.48 : x
  2. Step 2: Convert to fraction form
    149,056.02/205,699.96 = 81,074.48/x
  3. Step 3: Cross multiply
    149,056.02x = 205,699.96 × 81,074.48
  4. Step 4: Simplify right side
    149,056.02x = 16,677,017,293.02
  5. Step 5: Solve for x
    x = 16,677,017,293.02/149,056.02
  6. Step 6: Final answer
    x = 111,884.23

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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.