Home / 135,622.60-203,433.90-121,107.40

Finding the Fourth Proportional to 135,622.60, 203,433.90 and 121,107.40

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Solution

The fourth proportional to 135,622.60, 203,433.90 and 121,107.40 is: 181,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,622.60 : 203,433.90 = 121,107.40 : x
  2. Step 2: Convert to fraction form
    135,622.60/203,433.90 = 121,107.40/x
  3. Step 3: Cross multiply
    135,622.60x = 203,433.90 × 121,107.40
  4. Step 4: Simplify right side
    135,622.60x = 24,637,350,700.86
  5. Step 5: Solve for x
    x = 24,637,350,700.86/135,622.60
  6. Step 6: Final answer
    x = 181,661.10

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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.