Home / 149,022.93-205,653.02-81,040.55

Finding the Fourth Proportional to 149,022.93, 205,653.02 and 81,040.55

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Solution

The fourth proportional to 149,022.93, 205,653.02 and 81,040.55 is: 111,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,022.93 : 205,653.02 = 81,040.55 : x
  2. Step 2: Convert to fraction form
    149,022.93/205,653.02 = 81,040.55/x
  3. Step 3: Cross multiply
    149,022.93x = 205,653.02 × 81,040.55
  4. Step 4: Simplify right side
    149,022.93x = 16,666,233,222.82
  5. Step 5: Solve for x
    x = 16,666,233,222.82/149,022.93
  6. Step 6: Final answer
    x = 111,836.70

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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.