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Finding the Fourth Proportional to 188,751.20, 260,465.82 and 103,868.28

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Solution

The fourth proportional to 188,751.20, 260,465.82 and 103,868.28 is: 143,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,751.20 : 260,465.82 = 103,868.28 : x
  2. Step 2: Convert to fraction form
    188,751.20/260,465.82 = 103,868.28/x
  3. Step 3: Cross multiply
    188,751.20x = 260,465.82 × 103,868.28
  4. Step 4: Simplify right side
    188,751.20x = 27,054,136,722.19
  5. Step 5: Solve for x
    x = 27,054,136,722.19/188,751.20
  6. Step 6: Final answer
    x = 143,332.26

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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.