Home / 151,749.45-227,350.80-72,689.40

Finding the Fourth Proportional to 151,749.45, 227,350.80 and 72,689.40

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Solution

The fourth proportional to 151,749.45, 227,350.80 and 72,689.40 is: 108,903.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,749.45 : 227,350.80 = 72,689.40 : x
  2. Step 2: Convert to fraction form
    151,749.45/227,350.80 = 72,689.40/x
  3. Step 3: Cross multiply
    151,749.45x = 227,350.80 × 72,689.40
  4. Step 4: Simplify right side
    151,749.45x = 16,525,993,241.52
  5. Step 5: Solve for x
    x = 16,525,993,241.52/151,749.45
  6. Step 6: Final answer
    x = 108,903.15

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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.