Home / 114,917.82-158,475.15-76,678.92

Finding the Fourth Proportional to 114,917.82, 158,475.15 and 76,678.92

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Solution

The fourth proportional to 114,917.82, 158,475.15 and 76,678.92 is: 105,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,917.82 : 158,475.15 = 76,678.92 : x
  2. Step 2: Convert to fraction form
    114,917.82/158,475.15 = 76,678.92/x
  3. Step 3: Cross multiply
    114,917.82x = 158,475.15 × 76,678.92
  4. Step 4: Simplify right side
    114,917.82x = 12,151,703,348.84
  5. Step 5: Solve for x
    x = 12,151,703,348.84/114,917.82
  6. Step 6: Final answer
    x = 105,742.55

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1.5x scale

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.