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Finding the Fourth Proportional to 141,685.28, 210,855.28 and 136,960.64

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Solution

The fourth proportional to 141,685.28, 210,855.28 and 136,960.64 is: 203,824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,685.28 : 210,855.28 = 136,960.64 : x
  2. Step 2: Convert to fraction form
    141,685.28/210,855.28 = 136,960.64/x
  3. Step 3: Cross multiply
    141,685.28x = 210,855.28 × 136,960.64
  4. Step 4: Simplify right side
    141,685.28x = 28,878,874,096.18
  5. Step 5: Solve for x
    x = 28,878,874,096.18/141,685.28
  6. Step 6: Final answer
    x = 203,824.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.