Home / 125,162.85-187,681.91-40,912.05

Finding the Fourth Proportional to 125,162.85, 187,681.91 and 40,912.05

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Solution

The fourth proportional to 125,162.85, 187,681.91 and 40,912.05 is: 61,347.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,162.85 : 187,681.91 = 40,912.05 : x
  2. Step 2: Convert to fraction form
    125,162.85/187,681.91 = 40,912.05/x
  3. Step 3: Cross multiply
    125,162.85x = 187,681.91 × 40,912.05
  4. Step 4: Simplify right side
    125,162.85x = 7,678,452,338.68
  5. Step 5: Solve for x
    x = 7,678,452,338.68/125,162.85
  6. Step 6: Final answer
    x = 61,347.69

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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.