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Finding the Fourth Proportional to 136,372.64, 188,156.22 and 87,954.08

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Solution

The fourth proportional to 136,372.64, 188,156.22 and 87,954.08 is: 121,352.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,372.64 : 188,156.22 = 87,954.08 : x
  2. Step 2: Convert to fraction form
    136,372.64/188,156.22 = 87,954.08/x
  3. Step 3: Cross multiply
    136,372.64x = 188,156.22 × 87,954.08
  4. Step 4: Simplify right side
    136,372.64x = 16,549,107,226.38
  5. Step 5: Solve for x
    x = 16,549,107,226.38/136,372.64
  6. Step 6: Final answer
    x = 121,352.11

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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.