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Finding the Fourth Proportional to 188,627.16, 260,304.12 and 103,742.40

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Solution

The fourth proportional to 188,627.16, 260,304.12 and 103,742.40 is: 143,163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,627.16 : 260,304.12 = 103,742.40 : x
  2. Step 2: Convert to fraction form
    188,627.16/260,304.12 = 103,742.40/x
  3. Step 3: Cross multiply
    188,627.16x = 260,304.12 × 103,742.40
  4. Step 4: Simplify right side
    188,627.16x = 27,004,574,138.69
  5. Step 5: Solve for x
    x = 27,004,574,138.69/188,627.16
  6. Step 6: Final answer
    x = 143,163.76

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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.