Home / 125,164.66-187,788.90-40,928.71

Finding the Fourth Proportional to 125,164.66, 187,788.90 and 40,928.71

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Solution

The fourth proportional to 125,164.66, 187,788.90 and 40,928.71 is: 61,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,164.66 : 187,788.90 = 40,928.71 : x
  2. Step 2: Convert to fraction form
    125,164.66/187,788.90 = 40,928.71/x
  3. Step 3: Cross multiply
    125,164.66x = 187,788.90 × 40,928.71
  4. Step 4: Simplify right side
    125,164.66x = 7,685,956,959.85
  5. Step 5: Solve for x
    x = 7,685,956,959.85/125,164.66
  6. Step 6: Final answer
    x = 61,406.77

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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.