Home / 137,749.80-206,624.70-136,437.60

Finding the Fourth Proportional to 137,749.80, 206,624.70 and 136,437.60

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Solution

The fourth proportional to 137,749.80, 206,624.70 and 136,437.60 is: 204,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,749.80 : 206,624.70 = 136,437.60 : x
  2. Step 2: Convert to fraction form
    137,749.80/206,624.70 = 136,437.60/x
  3. Step 3: Cross multiply
    137,749.80x = 206,624.70 × 136,437.60
  4. Step 4: Simplify right side
    137,749.80x = 28,191,378,168.72
  5. Step 5: Solve for x
    x = 28,191,378,168.72/137,749.80
  6. Step 6: Final answer
    x = 204,656.40

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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.