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Finding the Fourth Proportional to 188,506.34, 260,132.16 and 103,622.80

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Solution

The fourth proportional to 188,506.34, 260,132.16 and 103,622.80 is: 142,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,506.34 : 260,132.16 = 103,622.80 : x
  2. Step 2: Convert to fraction form
    188,506.34/260,132.16 = 103,622.80/x
  3. Step 3: Cross multiply
    188,506.34x = 260,132.16 × 103,622.80
  4. Step 4: Simplify right side
    188,506.34x = 26,955,622,789.25
  5. Step 5: Solve for x
    x = 26,955,622,789.25/188,506.34
  6. Step 6: Final answer
    x = 142,995.84

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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.