Home / 145,584.42-200,905.88-81,923.28

Finding the Fourth Proportional to 145,584.42, 200,905.88 and 81,923.28

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Solution

The fourth proportional to 145,584.42, 200,905.88 and 81,923.28 is: 113,053.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,584.42 : 200,905.88 = 81,923.28 : x
  2. Step 2: Convert to fraction form
    145,584.42/200,905.88 = 81,923.28/x
  3. Step 3: Cross multiply
    145,584.42x = 200,905.88 × 81,923.28
  4. Step 4: Simplify right side
    145,584.42x = 16,458,868,251.27
  5. Step 5: Solve for x
    x = 16,458,868,251.27/145,584.42
  6. Step 6: Final answer
    x = 113,053.77

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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.