Home / 170,387.20-255,630.16-70,528.96

Finding the Fourth Proportional to 170,387.20, 255,630.16 and 70,528.96

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Solution

The fourth proportional to 170,387.20, 255,630.16 and 70,528.96 is: 105,813.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,387.20 : 255,630.16 = 70,528.96 : x
  2. Step 2: Convert to fraction form
    170,387.20/255,630.16 = 70,528.96/x
  3. Step 3: Cross multiply
    170,387.20x = 255,630.16 × 70,528.96
  4. Step 4: Simplify right side
    170,387.20x = 18,029,329,329.43
  5. Step 5: Solve for x
    x = 18,029,329,329.43/170,387.20
  6. Step 6: Final answer
    x = 105,813.87

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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.