Home / 136,733.33-188,701.45-76,315.77

Finding the Fourth Proportional to 136,733.33, 188,701.45 and 76,315.77

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Solution

The fourth proportional to 136,733.33, 188,701.45 and 76,315.77 is: 105,321.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,733.33 : 188,701.45 = 76,315.77 : x
  2. Step 2: Convert to fraction form
    136,733.33/188,701.45 = 76,315.77/x
  3. Step 3: Cross multiply
    136,733.33x = 188,701.45 × 76,315.77
  4. Step 4: Simplify right side
    136,733.33x = 14,400,896,266.08
  5. Step 5: Solve for x
    x = 14,400,896,266.08/136,733.33
  6. Step 6: Final answer
    x = 105,321.04

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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.