Home / 145,426.32-200,706.26-81,762.75

Finding the Fourth Proportional to 145,426.32, 200,706.26 and 81,762.75

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Solution

The fourth proportional to 145,426.32, 200,706.26 and 81,762.75 is: 112,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,426.32 : 200,706.26 = 81,762.75 : x
  2. Step 2: Convert to fraction form
    145,426.32/200,706.26 = 81,762.75/x
  3. Step 3: Cross multiply
    145,426.32x = 200,706.26 × 81,762.75
  4. Step 4: Simplify right side
    145,426.32x = 16,410,295,351.00
  5. Step 5: Solve for x
    x = 16,410,295,351.00/145,426.32
  6. Step 6: Final answer
    x = 112,842.68

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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.