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Finding the Fourth Proportional to 134,471.20, 201,706.80 and 40,981.60

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Solution

The fourth proportional to 134,471.20, 201,706.80 and 40,981.60 is: 61,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,471.20 : 201,706.80 = 40,981.60 : x
  2. Step 2: Convert to fraction form
    134,471.20/201,706.80 = 40,981.60/x
  3. Step 3: Cross multiply
    134,471.20x = 201,706.80 × 40,981.60
  4. Step 4: Simplify right side
    134,471.20x = 8,266,267,394.88
  5. Step 5: Solve for x
    x = 8,266,267,394.88/134,471.20
  6. Step 6: Final answer
    x = 61,472.40

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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.