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Finding the Fourth Proportional to 180,007.74, 248,445.30 and 103,578.30

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Solution

The fourth proportional to 180,007.74, 248,445.30 and 103,578.30 is: 142,957.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,007.74 : 248,445.30 = 103,578.30 : x
  2. Step 2: Convert to fraction form
    180,007.74/248,445.30 = 103,578.30/x
  3. Step 3: Cross multiply
    180,007.74x = 248,445.30 × 103,578.30
  4. Step 4: Simplify right side
    180,007.74x = 25,733,541,816.99
  5. Step 5: Solve for x
    x = 25,733,541,816.99/180,007.74
  6. Step 6: Final answer
    x = 142,957.97

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1.5x scale

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.