Home / 149,024.43-205,655.09-81,042.05

Finding the Fourth Proportional to 149,024.43, 205,655.09 and 81,042.05

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Solution

The fourth proportional to 149,024.43, 205,655.09 and 81,042.05 is: 111,838.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,024.43 : 205,655.09 = 81,042.05 : x
  2. Step 2: Convert to fraction form
    149,024.43/205,655.09 = 81,042.05/x
  3. Step 3: Cross multiply
    149,024.43x = 205,655.09 × 81,042.05
  4. Step 4: Simplify right side
    149,024.43x = 16,666,708,653.05
  5. Step 5: Solve for x
    x = 16,666,708,653.05/149,024.43
  6. Step 6: Final answer
    x = 111,838.77

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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.