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Finding the Fourth Proportional to 134,294.70, 201,150.45 and 81,806.70

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Solution

The fourth proportional to 134,294.70, 201,150.45 and 81,806.70 is: 122,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,294.70 : 201,150.45 = 81,806.70 : x
  2. Step 2: Convert to fraction form
    134,294.70/201,150.45 = 81,806.70/x
  3. Step 3: Cross multiply
    134,294.70x = 201,150.45 × 81,806.70
  4. Step 4: Simplify right side
    134,294.70x = 16,455,454,518.02
  5. Step 5: Solve for x
    x = 16,455,454,518.02/134,294.70
  6. Step 6: Final answer
    x = 122,532.42

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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.