Home / 145,965.96-201,433.23-78,897.96

Finding the Fourth Proportional to 145,965.96, 201,433.23 and 78,897.96

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Solution

The fourth proportional to 145,965.96, 201,433.23 and 78,897.96 is: 108,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,965.96 : 201,433.23 = 78,897.96 : x
  2. Step 2: Convert to fraction form
    145,965.96/201,433.23 = 78,897.96/x
  3. Step 3: Cross multiply
    145,965.96x = 201,433.23 × 78,897.96
  4. Step 4: Simplify right side
    145,965.96x = 15,892,670,923.21
  5. Step 5: Solve for x
    x = 15,892,670,923.21/145,965.96
  6. Step 6: Final answer
    x = 108,879.30

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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.