Home / 135,905.90-203,455.65-101,000.30

Finding the Fourth Proportional to 135,905.90, 203,455.65 and 101,000.30

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Solution

The fourth proportional to 135,905.90, 203,455.65 and 101,000.30 is: 151,200.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,905.90 : 203,455.65 = 101,000.30 : x
  2. Step 2: Convert to fraction form
    135,905.90/203,455.65 = 101,000.30/x
  3. Step 3: Cross multiply
    135,905.90x = 203,455.65 × 101,000.30
  4. Step 4: Simplify right side
    135,905.90x = 20,549,081,686.70
  5. Step 5: Solve for x
    x = 20,549,081,686.70/135,905.90
  6. Step 6: Final answer
    x = 151,200.81

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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.