Home / 103,389.08-142,676.96-58,067.12

Finding the Fourth Proportional to 103,389.08, 142,676.96 and 58,067.12

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Solution

The fourth proportional to 103,389.08, 142,676.96 and 58,067.12 is: 80,132.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,389.08 : 142,676.96 = 58,067.12 : x
  2. Step 2: Convert to fraction form
    103,389.08/142,676.96 = 58,067.12/x
  3. Step 3: Cross multiply
    103,389.08x = 142,676.96 × 58,067.12
  4. Step 4: Simplify right side
    103,389.08x = 8,284,840,223.91
  5. Step 5: Solve for x
    x = 8,284,840,223.91/103,389.08
  6. Step 6: Final answer
    x = 80,132.65

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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.