Home / 105,784.38-145,982.48-58,037.72

Finding the Fourth Proportional to 105,784.38, 145,982.48 and 58,037.72

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Solution

The fourth proportional to 105,784.38, 145,982.48 and 58,037.72 is: 80,092.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,784.38 : 145,982.48 = 58,037.72 : x
  2. Step 2: Convert to fraction form
    105,784.38/145,982.48 = 58,037.72/x
  3. Step 3: Cross multiply
    105,784.38x = 145,982.48 × 58,037.72
  4. Step 4: Simplify right side
    105,784.38x = 8,472,489,279.04
  5. Step 5: Solve for x
    x = 8,472,489,279.04/105,784.38
  6. Step 6: Final answer
    x = 80,092.06

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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.