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Finding the Fourth Proportional to 134,768.42, 201,820.46 and 84,724.40

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Solution

The fourth proportional to 134,768.42, 201,820.46 and 84,724.40 is: 126,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,768.42 : 201,820.46 = 84,724.40 : x
  2. Step 2: Convert to fraction form
    134,768.42/201,820.46 = 84,724.40/x
  3. Step 3: Cross multiply
    134,768.42x = 201,820.46 × 84,724.40
  4. Step 4: Simplify right side
    134,768.42x = 17,099,117,381.22
  5. Step 5: Solve for x
    x = 17,099,117,381.22/134,768.42
  6. Step 6: Final answer
    x = 126,877.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.