Home / 103,668.18-155,479.71-40,467.96

Finding the Fourth Proportional to 103,668.18, 155,479.71 and 40,467.96

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Solution

The fourth proportional to 103,668.18, 155,479.71 and 40,467.96 is: 60,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,668.18 : 155,479.71 = 40,467.96 : x
  2. Step 2: Convert to fraction form
    103,668.18/155,479.71 = 40,467.96/x
  3. Step 3: Cross multiply
    103,668.18x = 155,479.71 × 40,467.96
  4. Step 4: Simplify right side
    103,668.18x = 6,291,946,685.09
  5. Step 5: Solve for x
    x = 6,291,946,685.09/103,668.18
  6. Step 6: Final answer
    x = 60,693.13

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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.