Home / 118,415.24-163,412.82-68,123.72

Finding the Fourth Proportional to 118,415.24, 163,412.82 and 68,123.72

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Solution

The fourth proportional to 118,415.24, 163,412.82 and 68,123.72 is: 94,010.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,415.24 : 163,412.82 = 68,123.72 : x
  2. Step 2: Convert to fraction form
    118,415.24/163,412.82 = 68,123.72/x
  3. Step 3: Cross multiply
    118,415.24x = 163,412.82 × 68,123.72
  4. Step 4: Simplify right side
    118,415.24x = 11,132,289,194.09
  5. Step 5: Solve for x
    x = 11,132,289,194.09/118,415.24
  6. Step 6: Final answer
    x = 94,010.61

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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.