Home / 149,730.32-206,624.68-81,744.00

Finding the Fourth Proportional to 149,730.32, 206,624.68 and 81,744.00

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Solution

The fourth proportional to 149,730.32, 206,624.68 and 81,744.00 is: 112,805.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,730.32 : 206,624.68 = 81,744.00 : x
  2. Step 2: Convert to fraction form
    149,730.32/206,624.68 = 81,744.00/x
  3. Step 3: Cross multiply
    149,730.32x = 206,624.68 × 81,744.00
  4. Step 4: Simplify right side
    149,730.32x = 16,890,328,154.12
  5. Step 5: Solve for x
    x = 16,890,328,154.12/149,730.32
  6. Step 6: Final answer
    x = 112,805.00

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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.