Home / 105,749.38-145,934.36-58,003.12

Finding the Fourth Proportional to 105,749.38, 145,934.36 and 58,003.12

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Solution

The fourth proportional to 105,749.38, 145,934.36 and 58,003.12 is: 80,044.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,749.38 : 145,934.36 = 58,003.12 : x
  2. Step 2: Convert to fraction form
    105,749.38/145,934.36 = 58,003.12/x
  3. Step 3: Cross multiply
    105,749.38x = 145,934.36 × 58,003.12
  4. Step 4: Simplify right side
    105,749.38x = 8,464,648,195.20
  5. Step 5: Solve for x
    x = 8,464,648,195.20/105,749.38
  6. Step 6: Final answer
    x = 80,044.42

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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.