Home / 106,128.39-146,456.13-58,381.80

Finding the Fourth Proportional to 106,128.39, 146,456.13 and 58,381.80

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Solution

The fourth proportional to 106,128.39, 146,456.13 and 58,381.80 is: 80,566.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,128.39 : 146,456.13 = 58,381.80 : x
  2. Step 2: Convert to fraction form
    106,128.39/146,456.13 = 58,381.80/x
  3. Step 3: Cross multiply
    106,128.39x = 146,456.13 × 58,381.80
  4. Step 4: Simplify right side
    106,128.39x = 8,550,372,490.43
  5. Step 5: Solve for x
    x = 8,550,372,490.43/106,128.39
  6. Step 6: Final answer
    x = 80,566.31

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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.