Home / 103,386.78-142,676.24-58,064.85

Finding the Fourth Proportional to 103,386.78, 142,676.24 and 58,064.85

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Solution

The fourth proportional to 103,386.78, 142,676.24 and 58,064.85 is: 80,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,386.78 : 142,676.24 = 58,064.85 : x
  2. Step 2: Convert to fraction form
    103,386.78/142,676.24 = 58,064.85/x
  3. Step 3: Cross multiply
    103,386.78x = 142,676.24 × 58,064.85
  4. Step 4: Simplify right side
    103,386.78x = 8,284,474,183.84
  5. Step 5: Solve for x
    x = 8,284,474,183.84/103,386.78
  6. Step 6: Final answer
    x = 80,130.89

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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.