Home / 149,315.04-206,039.79-91,945.17

Finding the Fourth Proportional to 149,315.04, 206,039.79 and 91,945.17

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Solution

The fourth proportional to 149,315.04, 206,039.79 and 91,945.17 is: 126,875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,315.04 : 206,039.79 = 91,945.17 : x
  2. Step 2: Convert to fraction form
    149,315.04/206,039.79 = 91,945.17/x
  3. Step 3: Cross multiply
    149,315.04x = 206,039.79 × 91,945.17
  4. Step 4: Simplify right side
    149,315.04x = 18,944,363,518.31
  5. Step 5: Solve for x
    x = 18,944,363,518.31/149,315.04
  6. Step 6: Final answer
    x = 126,875.12

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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.