Home / 149,047.02-205,687.52-81,065.48

Finding the Fourth Proportional to 149,047.02, 205,687.52 and 81,065.48

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Solution

The fourth proportional to 149,047.02, 205,687.52 and 81,065.48 is: 111,871.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,047.02 : 205,687.52 = 81,065.48 : x
  2. Step 2: Convert to fraction form
    149,047.02/205,687.52 = 81,065.48/x
  3. Step 3: Cross multiply
    149,047.02x = 205,687.52 × 81,065.48
  4. Step 4: Simplify right side
    149,047.02x = 16,674,157,538.81
  5. Step 5: Solve for x
    x = 16,674,157,538.81/149,047.02
  6. Step 6: Final answer
    x = 111,871.79

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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.