Home / 134,105.40-201,158.10-120,108.60

Finding the Fourth Proportional to 134,105.40, 201,158.10 and 120,108.60

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Solution

The fourth proportional to 134,105.40, 201,158.10 and 120,108.60 is: 180,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,105.40 : 201,158.10 = 120,108.60 : x
  2. Step 2: Convert to fraction form
    134,105.40/201,158.10 = 120,108.60/x
  3. Step 3: Cross multiply
    134,105.40x = 201,158.10 × 120,108.60
  4. Step 4: Simplify right side
    134,105.40x = 24,160,817,769.66
  5. Step 5: Solve for x
    x = 24,160,817,769.66/134,105.40
  6. Step 6: Final answer
    x = 180,162.90

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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.