Home / 125,558.12-188,337.48-30,788.72

Finding the Fourth Proportional to 125,558.12, 188,337.48 and 30,788.72

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Solution

The fourth proportional to 125,558.12, 188,337.48 and 30,788.72 is: 46,183.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,558.12 : 188,337.48 = 30,788.72 : x
  2. Step 2: Convert to fraction form
    125,558.12/188,337.48 = 30,788.72/x
  3. Step 3: Cross multiply
    125,558.12x = 188,337.48 × 30,788.72
  4. Step 4: Simplify right side
    125,558.12x = 5,798,669,937.23
  5. Step 5: Solve for x
    x = 5,798,669,937.23/125,558.12
  6. Step 6: Final answer
    x = 46,183.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.