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Finding the Fourth Proportional to 134,006.40, 201,009.60 and 120,009.60

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Solution

The fourth proportional to 134,006.40, 201,009.60 and 120,009.60 is: 180,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,006.40 : 201,009.60 = 120,009.60 : x
  2. Step 2: Convert to fraction form
    134,006.40/201,009.60 = 120,009.60/x
  3. Step 3: Cross multiply
    134,006.40x = 201,009.60 × 120,009.60
  4. Step 4: Simplify right side
    134,006.40x = 24,123,081,692.16
  5. Step 5: Solve for x
    x = 24,123,081,692.16/134,006.40
  6. Step 6: Final answer
    x = 180,014.40

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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.