Home / 136,470.18-188,326.31-76,039.53

Finding the Fourth Proportional to 136,470.18, 188,326.31 and 76,039.53

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Solution

The fourth proportional to 136,470.18, 188,326.31 and 76,039.53 is: 104,933.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,470.18 : 188,326.31 = 76,039.53 : x
  2. Step 2: Convert to fraction form
    136,470.18/188,326.31 = 76,039.53/x
  3. Step 3: Cross multiply
    136,470.18x = 188,326.31 × 76,039.53
  4. Step 4: Simplify right side
    136,470.18x = 14,320,243,718.84
  5. Step 5: Solve for x
    x = 14,320,243,718.84/136,470.18
  6. Step 6: Final answer
    x = 104,933.13

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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.