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Finding the Fourth Proportional to 188,532.50, 260,180.93 and 103,655.70

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Solution

The fourth proportional to 188,532.50, 260,180.93 and 103,655.70 is: 143,048.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,532.50 : 260,180.93 = 103,655.70 : x
  2. Step 2: Convert to fraction form
    188,532.50/260,180.93 = 103,655.70/x
  3. Step 3: Cross multiply
    188,532.50x = 260,180.93 × 103,655.70
  4. Step 4: Simplify right side
    188,532.50x = 26,969,236,425.80
  5. Step 5: Solve for x
    x = 26,969,236,425.80/188,532.50
  6. Step 6: Final answer
    x = 143,048.21

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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.