Home / 285,682.32-428,527.98-108,141.66

Finding the Fourth Proportional to 285,682.32, 428,527.98 and 108,141.66

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Solution

The fourth proportional to 285,682.32, 428,527.98 and 108,141.66 is: 162,214.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,682.32 : 428,527.98 = 108,141.66 : x
  2. Step 2: Convert to fraction form
    285,682.32/428,527.98 = 108,141.66/x
  3. Step 3: Cross multiply
    285,682.32x = 428,527.98 × 108,141.66
  4. Step 4: Simplify right side
    285,682.32x = 46,341,727,113.65
  5. Step 5: Solve for x
    x = 46,341,727,113.65/285,682.32
  6. Step 6: Final answer
    x = 162,214.19

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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.